III/284 APOGEE-2 data from DR16 (Johnsson+, 2020)
APOGEE data and spectral analysis from SDSS Data Release 16: seven years of
observations including first results from APOGEE-South.
Jonsson H., Holtzman J.A., Allende Prieto C., Cunha K.,
Garcia-Hernandez D.A., Hasselquist S., Masseron T., Osorio Y., Shetrone M.,
Smith V., Stringfellow G.S., Bizyaev D., Edvardsson B., Majewski S.R.,
Meszaros S., Souto D., Zamora O., Beaton R.L., Bovy Jo, Donor J.,
Pinsonneault M.H., Poovelil V.J., Sobeck J.
<Astron. J., 160, 120 (2020)>
=2020AJ....160..120J 2020AJ....160..120J
=2017AJ....154...94M 2017AJ....154...94M (SIMBAD/NED BibCode)
ADC_Keywords: Spectra, infrared; Surveys
Keywords: Galactic abundances ; Galaxy radial velocities ; Stellar abundances ;
Near infrared astronomy ; High resolution spectroscopy
Abstract:
The spectral analysis and data products in Data Release 16 (DR16; 2019
December) from the high-resolution near-infrared Apache Point
Observatory Galactic Evolution Experiment (APOGEE)-2/Sloan Digital Sky
Survey (SDSS)-IV survey are described. Compared to the previous APOGEE
data release (DR14; 2017 July), APOGEE DR16 includes about 200000 new
stellar spectra, of which 100000 are from a new southern APOGEE
instrument mounted on the 2.5m du Pont telescope at Las Campanas
Observatory in Chile. DR16 includes all data taken up to 2018 August,
including data released in previous data releases. All of the data
have been re-reduced and re-analyzed using the latest pipelines,
resulting in a total of 473307 spectra of 437445 stars. Changes to the
analysis methods for this release include, but are not limited to, the
use of MARCS model atmospheres for calculation of the entire main grid
of synthetic spectra used in the analysis, a new method for filling
"holes" in the grids due to unconverged model atmospheres, and a new
scheme for continuum normalization. Abundances of the neutron-capture
element Ce are included for the first time. A new scheme for
estimating uncertainties of the derived quantities using stars with
multiple observations has been applied, and calibrated values of
surface gravities for dwarf stars are now supplied. Compared to DR14,
the radial velocities derived for this release more closely match
those in the Gaia DR2 database, and a clear improvement in the
spectral analysis of the coolest giants can be seen.
Description:
The Apache Point Observatory Galactic Evolution Experiment (APOGEE;
Majewski+ 2017AJ....154...94M 2017AJ....154...94M) was originally an infrared stellar
spectroscopic survey within Sloan Digital Sky Survey (SDSS)-III
(henceforth APOGEE-1; Eisenstein+ 2011AJ....142...72E 2011AJ....142...72E), and APOGEE-2
is the continuation of the same program within SDSS-IV
(Blanton+ 2017AJ....154...28B 2017AJ....154...28B).
APOGEE-2 DR16 (2019 December) maps the dynamical and chemical patterns
of Milky Way stars with data from the 1-meter NMSU Telescope and the
2.5-meter Sloan Foundation Telescope at the Apache Point Observatory
in New Mexico (APOGEE-2N), and the 2.5-meter du Pont Telescope at Las
Campanas Observatory in Chile (APOGEE-2S).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
allstars.dat 3301 473306 APOGEE-2 DR16 allStar data
(ASCAP version l33, release 12)
allvis.dat 1380 1778787 Time series radial velocities (allVisit;
ASCAP version l33, release 12)
allplate.dat 228 6759 All plates informations
table3.dat 165 7514 Windows and weights used in the determination
of stellar abundances
--------------------------------------------------------------------------------
Description of file:
On the FTP, "allStar-r12-l33.fits" and "allVisit-r12-l33.fits" files,
are the original files in FITS format.
See also:
VI/39 : Model Atmospheres (Kurucz, 1979)
VII/203 : Las Campanas Redshift Survey (Shectman+ 1996)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/A+A/275/101 : Chemical evolution of Galactic disk I. (Edvardsson+ 1993)
J/MNRAS/328/45 : Late-type stars members of young groups (Montes+, 2001)
J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)
J/MNRAS/340/304 : [X/Fe] of Galactic disc F and G dwarfs (Reddy+, 2003)
J/A+A/410/527 : Abundances in the Galactic disk (Bensby+, 2003)
J/AJ/128/1177 : Galactic stellar abundances (Venn+, 2004)
J/A+A/430/165 : Radial velocities for 6691 K and M giants (Famaey+, 2005)
J/AJ/131/1784 : Astrometric Grid Giant Star Survey. I. (Bizyaev+, 2006)
J/ApJS/171/146 : Population synthesis in the blue. IV (Schiavon+, 2007)
J/A+A/497/497 : Physical param. from JHK flux (Gonzalez-Hernandez+, 2009)
J/AJ/137/4377 : List of SEGUE plate pairs (Yanny+, 2009)
J/A+A/511/L10 : Abundances and space velocities of 94 stars (Nissen+, 2010)
J/MNRAS/403/1413 : Updated stellar yields from AGB models (Karakas, 2010)
J/ApJ/721/L28 : Red clump stars in Gal. Bulge from OGLE-III (Nataf+, 2010)
J/A+A/523/A48 : Gaia photometry (Jordi+, 2010)
J/A+A/530/A54 : Abundances of 650 bulge red giants (Gonzalez+, 2011)
J/A+A/545/A32 : Chemical abundances of 1111 FGK stars (Adibekyan+, 2012)
J/AJ/144/95 : Abundance in stars of outer galactic disk. IV. (Yong+, 2012)
J/A+A/545/A32 : Chemical abundances of 1111 FGK stars (Adibekyan+, 2012)
J/ApJ/762/88 : Young stellar kinematic group cand. members (Malo+, 2013)
J/ApJ/776/67 : Rotational tracks (van Saders+, 2013)
J/AJ/146/133 : Stellar param. from SDSS-III APOGEE DR10 (Meszaros+, 2013)
J/AJ/146/156 : APOGEE M-dwarf survey. I. 1st-yr veloc. (Deshpande+, 2013)
J/A+A/562/A71 : Abundances of solar neighbourhood dwarfs (Bensby+, 2014)
J/AJ/148/24 : Extinction maps in the bulge from APOGEE (Schultheis+, 2014)
J/ApJS/215/19 : APOKASC catalog of Kepler red giants (Pinsonneault+, 2014)
J/A+A/580/A24 : Abundances in dwarfs, subgiants and giants (da Silva+, 2015)
J/AJ/149/7 : SDSS-III/APOGEE. I. Be stars (Chojnowski+, 2015)
J/ApJ/799/136 : IN-SYNC. II. Cand. young stars in NGC 1333 (Foster+, 2015)
J/AJ/149/153 : Abundances of red giants in 10 GCs (Meszaros+, 2015)
J/ApJ/812/146 : Line-of-sight veloc. from bar simulations (Molloy+, 2015)
J/ApJS/221/24 : SDSS-III APOGEE H-band spectral line lists (Shetrone+, 2015)
J/ApJ/819/2 : APOGEE kinematics. I. Galactic bulge overview (Ness+, 2016)
J/MNRAS/456/3655 : Masses and ages of red giants (Martig+, 2016)
J/AJ/151/144 : ASPCAP weights for APOGEE chemical elements (Garcia+, 2016)
J/ApJ/823/114 : The Cannon: a new approach to determine masses (Ness+, 2016)
J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)
J/A+A/594/A43 : APOGEE/Kepler sample stars abundances (Hawkins+, 2016)
J/A+A/597/A30 : Seismology & spec. of CoRoGEE red giants (Anders+, 2017)
J/A+A/598/A100 : Abundances of disk giants: O, Mg, Ca and Ti (Jonsson+, 2017)
J/MNRAS/465/501 : APOGEE N-rich stars in inner Galaxy (Schiavon+, 2017)
J/AJ/155/68 : Elemental abundances of KOIs in APOGEE. I. (Wilson+, 2018)
J/AJ/156/18 : APOGEE DR14: evolved star companions (Price-Whelan+, 2018)
J/AJ/156/45 : M-dwarf multiples in the SDSS-III/APOGEE (Skinner+, 2018)
J/AJ/156/84 : APOGEE-2 survey of Orion Complex. II. (Kounkel+, 2018)
J/AJ/156/90 : New cat. of APOGEE RV standard stars (Huang+, 2018)
J/AJ/156/126 : Abundances from BACCHUS analysis (Jonsson+, 2018)
J/ApJ/852/50 : Galactic halo with APOGEE. II. (Fernandez-Alvar+, 2018)
J/ApJ/865/68 : Abundances for Sun-like stars within 100pc (Bedell+, 2018)
J/ApJS/239/32 : APOKASC-2 cat. of Kepler evolved stars (Pinsonneault+, 2018)
J/A+A/623/A80 : Open clusters in APOGEE and GALAH surveys (Carrera+, 2019)
J/A+A/631/A113 : Disk & bulge giant abundances (Forsberg+, 2019)
J/A+A/625/A141 : Abundances of disk and bulge giants (Lomaeva+, 2019)
J/A+A/627/A177 : Non-LTE analysis of K I in late-type stars (Reggiani+, 2019)
J/ApJ/872/137 : APOGEE abundances of red clump & RGB stars (Shetrone+, 2019)
J/AJ/158/106 : EBs RVs from APOGEE spectra (Cunningham+, 2019)
J/AJ/159/199 : OCCAM IV. APOGEE DR16 open cluster abundances (Donor+, 2020)
http://www.sdss.org/surveys/apogee-2/ : APOGEE-2 home page
http://www.sdss.org/dr16/irspec/spectro_data/ : Access to APOGEE data
http://data.sdss.org/datamodel/files/APOGEE_ASPCAP/APRED_VERS/ASPCAP_VERS :
SDSS ASCAP datamodels
Byte-by-byte Description of file: allstars.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 57 A57 --- Apstar Unique apStar identifier (APSTAR_ID) (1)
59- 105 A47 --- Target Target identifier (TARGET_ID)
107- 165 A59 --- Ascap Unique ASCAP identifier (ASPCAP_ID) (1)
167- 205 A39 --- File File name
207- 224 A18 --- ID 2MASS-style object name (mainly but not only
"2MHHMMSSss+DDMMSSs" or
"APHHMMSSss+DDMMSSs") (APOGEE_ID)
226- 231 A6 --- Tel Telescope (APO 1m or 2.5m) (TELESCOPE)
233- 236 I4 --- Loc Field location identifier (LOCATION_ID)
238- 253 A16 --- Field Field name (FIELD)
255- 263 F9.3 mag Jmag [-2.3/18.5]?=- 2MASS J-band magnitude (J)
265- 273 F9.3 mag e_Jmag [0/10]?=- Jmag uncertainty (J_ERR)
275- 281 F7.3 mag Hmag [-2.9/24]?=- 2MASS H-band magnitude (H)
283- 291 F9.3 mag e_Hmag [0/10]?=- Hmag uncertainty (H_ERR)
293- 301 F9.3 mag Ksmag [-3.1/17.1]?=- 2MASS Ks-band magnitude (K)
303- 311 F9.3 mag e_Ksmag [0/10]?=- Ksmag uncertainty (K_ERR)
313- 322 F10.6 deg RAdeg Right ascension (J2000) (RA)
324- 333 F10.6 deg DEdeg Declination (J2000) (DEC)
335- 348 F14.10 deg GLON Galactic longitude
350- 363 F14.10 deg GLAT Galactic latitude
365- 375 I11 --- Ap1T1 Bitwise OR of first APOGEE-1 target flag
of all visits (APOGEE_TARGET1) (G1)
377- 387 I11 --- Ap1T2 Bitwise OR of first APOGEE-1 target flag
of all visits (APOGEE_TARGET2) (G1)
389 I1 --- Ap1T3 [0] (always "0") (APOGEE_TARGET3) (G1)
391- 401 I11 --- Ap2T1 Bitwise OR of first APOGEE-2 target flag
of all visits (APOGEE2_TARGET1) (G1)
403- 413 I11 --- Ap2T2 Bitwise OR of first APOGEE-2 target flag
of all visits (APOGEE2_TARGET2) (G1)
415- 425 I11 --- Ap2T3 Bitwise OR of first APOGEE-2 target flag
of all visits (APOGEE2_TARGET3) (G1)
427- 618 A192 --- Flags APOGEE-1 target flags (verbose/text)
(TARGFLAGS)
620- 654 A35 --- Survey Survey-associated with object ("apo1m",
"apogee" -"marvels", "apogee2" -"manga") (2)
656- 673 A18 --- Prog Program name associated with object, when
available (PROGRAMNAME)
675- 676 I2 --- NvC [0] Number of object visits in commissioning
(always "0") (NINST1)
678- 679 I2 --- Nv1 [0/37] Number of object visits in APOGEE-1
(NINST2)
681- 682 I2 --- Nv2 [0/40] Number of object visits in APOGEE-2
(NINST3)
684- 685 I2 --- Nv [1/50] Number of visits into combined
spectrum (NVISITS)
687 I1 --- VType [0/1]? Type of RV combination used
(COMBTYPE) (3)
689 I1 --- Comm? [0] Set to 1 for APOGEE-1 Commissioning data
(before July 2011), else 0 [always "0"]
(COMMISS)
691- 703 E13.6 --- SNR [-2e-9/4519] Median S/N per pixel in
combined frame (at apStar sampling)
705- 710 I6 --- SFlag Flag for star condition taken from bitwise
OR of individual visits (STARFLAG) (G1)
712- 871 A160 --- SFlags Verbose/text form of STARFLAG (STARFLAGS)
873- 877 I5 --- SaFlag Flag for star condition taken from bitwise
AND of individual visits (ANDFLAG) (G1)
879- 936 A58 --- SaFlags Verbose/text form of ANDFLAG (ANDFLAGS)
938- 950 F13.6 km/s HRV [-1629/1658]?=- Average radial velocity
(VHELIO_AVG) (4)
952- 961 F10.6 km/s s_HRV [0/659]?=-1 Scatter of individual visit RVs
around average (VSCATTER)
963- 975 F13.6 km/s e_HRV [0/177]?=- Uncertainty in VHELIO_AVG from
the S/N-weighted individual RVs (VERR)
977- 989 F13.6 km/s errHRV [0/343]?=- Median of individual visit RV
errors (VERR_MED)
991-1003 F13.6 km/s HRV2 [-1629/1412]?=- Average RV from observed
spectrum template matching technique
(OBSVHELIO_AVG)
1005-1014 F10.6 km/s s_HRV2 [0/659]?=-1 Scatter of individual visit
observed RVs around average (OBSVSCATTER)
1016-1027 E12.6 km/s e_HRV2 [0/4.9e+11] S/N weighted, pipeline-reported
error in the observed RV's (OBSVERR)
1029-1040 E12.6 km/s errHRV2 [0/4.9e+11] Median of individual visit
observed RV errors (OBSVERR_MED)
1042-1054 F13.6 km/s HRVs [-1898/1764]?=- Average RV from synthetic
spectrum template matching technique
(SYNTHVHELIO_AVG)
1056-1066 F11.6 km/s s_HRVs [0/1408]?=-1 Scatter of individual visit
synthethic RVs around average
(SYNTHVSCATTER)
1068-1079 E12.6 km/s e_HRVs [0/4.6e+10]?=- S/N weighted,
pipeline-reported error in the synthetic
RV's (SYNTHVERR)
1081-1092 E12.6 km/s errHRVs [0/4.6e+10]?=- Median of individual visit
synthetic RV errors (SYNTHVERR_MED)
1094-1098 I5 K TeffRV [3000/20000] Teff of best-match synthetic
spectrum from RV grid (NOT ASPCAP!)
(RV_TEFF)
1100-1102 F3.1 [cm/s2] loggRV [0.5/5] log g of best-match synthetic
spectrum from RV grid (NOT ASPCAP!)
(RV_LOGG)
1104-1112 F9.6 [-] [Fe/H]RV [-2/0.5] Abundance [Fe/H] of best-match
synthetic spectrum from RV grid
(NOT ASPCAP!) (RV_FEH)
1114-1121 F8.6 [-] [a/M]RV [0/0.75] Abundance [alpha/M] of best-match
synthetic spectrum from RV grid
(NOT ASPCAP!) (RV_ALPHA)
1123-1130 F8.6 [-] [C/M]RV [0/0.5] Abundance [C/M] of best-match
synthetic spectrum from RV grid
(NOT ASPCAP!) (RV_CARB)
1132-1143 F12.6 km/s FWHMCC [1.7/85214] FWHM of cross-correlation peak
from combined vs best-match synthetic
spectrum (RV_CCFWHM)
1145-1156 F12.6 km/s FWHM [14/60117] FWHM of auto-correlation of
best-match synthetic spectrum (RV_AUTOFWHM)
1158-1169 F12.6 --- Scatter [0/1130]?=-1 Scatter between RV using
combined spectrum and RV using synthetic
spectrum (SYNTHSCATTER)
1171-1182 E12.6 --- Chi2RVa [-1/2e+9] Χ2 of RV distribution under
assumption of a stable single-valued RV;
perhaps not currenlty useful because of
issues with understanding RV errors
(STABLERV_CHI2)
1184-1195 E12.6 --- Chi2RVb [-1/2e+10] Χ2 of RV distribution under
assumption of a stable single-valued RV;
perhaps not currenlty useful because of
issues with understanding RV errors
(STABLERV_CHI2b)
1197-1208 E12.6 --- rChi2RVa [-1/12654] Reduced χ2 of RV
distribution (STABLERV_RCHI2)
1210-1221 E12.6 --- rChi2RVb [-1/56259] Reduced χ2 of RV
distribution (STABLERV_RCHI2b)
1223-1230 F8.4 --- Chi2tha [-1/88] Threshold χ2 for possible
binary determination (not currently valid)
(CHI2_THRESHOLD)
1232-1239 F8.4 --- Chi2thb [-1/88] Threshold χ2 for possible
binary determination (not currently valid)
(CHI2_THRESHOLDb)
1241-1249 F9.6 --- Chi2pa [0/1]?=-1 Probability of obtaining observed
χ2 under assumption of stable RV
(STABLERVCHI2PROB)
1251-1259 F9.6 --- Chi2pb [0/1]?=-1 Probability of obtaining observed
χ2 under assumption of stable RV
(STABLERVCHI2PROBb)
1261-1270 F10.5 --- Nfib [1/300]?=-1 Mean fiber number of the set of
observations (MEANFIB)
1272-1282 F11.6 --- e_Nfib [0/197]?=-1 Dispersion in fiber number
(SIGFIB)
1284-1294 F11.6 --- SNrev [-0/4138]?=-1 Revised S/N estimate (avoiding
persistence issues)
1296-1300 A5 --- VerAp [stars] APSTAR release version
(always "stars") (APSTAR_VERSION)
1302-1304 A3 --- VerAsp [l33] ASPCAP release version (always "l33")
(ASPCAP_VERSION)
1306-1312 A7 --- Ver [-r12-l33] RESULTS release version
(always "r12-l33") (RESULTS_VERSION)
1314-1315 I2 --- EFlag [0/25] Bitmask which identifies main survey
targets (=0) and other classes
(EXTRATARG) (G1)
1317-1324 F8.2 mag Hmin [5/13.3]?=- Bright H limit for target
selection for this object (MIN_H)
1326-1332 F7.2 mag Hmax [11/15.3]?=- Faint H limit for target
selection for this object (MAX_H)
1334-1341 F8.2 mag J-Kmin [0/1]?=- Blue (J-K) limit for target
selection for this object (MIN_JK)
1343-1349 F7.2 mag J-Kmax [0.8]?=- Red (J-K) limit for target
selection for this object (always "0.8")
(MAX_JK)
1351-1359 F9.3 K Teff [3101/9793]?=- Teff from ASPCAP analysis of
combined spectrum (from PARAM)
1361-1368 F8.3 K e_Teff [49/657]?=- Teff uncertainty
(from PARAM_COV) (TEFF_ERR)
1370-1379 F10.4 [cm/s2] logg [-0.59/6.55]?=- logg from ASPCAP analysis
of combined spectrum (from PARAM)
1381-1389 F9.4 [cm/s2] e_logg [0.01/0.3]?=- logg uncertainty
(from PARAM_COV) (LOGG_ERR)
1391-1402 F12.6 km/s Vmicro [0.29/10]?=- Microturbulent velocity (fit
for dwarfs, f(logg) for giants)
1404-1412 F9.6 km/s Vmacro [/12.8]?=0 Macroturbulent velocity
(f(logTeff, [M/H]) for giants)
1414-1424 F11.5 km/s Vsini [1.5/96.1]?=- rotational+macroturbulent
velocity (fit for dwarfs)
1426-1437 F12.6 [-] [M/H] [-2.47/0.85]?=- [M/H] from ASPCAP analysis
of combined spectrum (from PARAM) (M_H)
1439-1450 E12.6 [-] e_[M/H] [0.004/1.2e+6]?=- [M/H] uncertainty
(from PARAM_COV) (MHERR)
1452-1463 F12.6 [-] [a/M] [-0.75/0.9]?=- [α/M] from ASPCAP
analysis of combined spectrum (from PARAM)
(ALPHA_M)
1465-1475 F11.6 [-] e_[a/M] [0.0017/4042]?=- [a/M] uncertainty
(from PARAM_COV) (ALPHAMERR)
1477-1488 E12.6 --- Chi2 [/187975]?=0 Χ2 from ASPCAP fit
(ASPCAP_CHI2)
1490-1494 A5 --- TClass Temperature class of best-fitting spectrum
(ASPCAP_CLASS)
1496-1506 I11 --- AFlag Flag for ASPCAP analysis (ASPCAPFLAG) (G1)
1508-1611 A104 --- AFlags Verbose/text form ASPCAPFLAG (ASPCAPFLAGS)
1613-1621 I9 --- f_Teff [0/33536] Teff flag for ASCAP analysis
(PARAMFLAG1) (G1)
1623-1631 I9 --- f_logg logg flag for ASCAP analysis
(PARAMFLAG2) (G1)
1633-1641 I9 --- f_Vmicro [0/65540] Vmicro flag for ASCAP analysis
(PARAMFLAG3) (G1)
1643-1651 I9 --- f_[M/H] Metals flag for ASCAP analysis
(PARAMFLAG4) (G1)
1653-1661 I9 --- f_[C/H] Flag on [C/H] for ASCAP analysis
(PARAMFLAG5) (G1)
1663-1671 I9 --- f_[N/H] Flag on [N/H] for ASCAP analysis
(PARAMFLAG6) (G1)
1673-1681 I9 --- f_[a/M] Flag on [a/M] ou [N/Fe]? for ASCAP analysis
(PARAMFLAG7) (G1)
1683-1691 I9 --- f_Vsini Flag on Vsini for ASCAP analysis
(PARAMFLAG8) (G1)
1693-1701 I9 --- f_O [4/65540] Flag on Param9 (not included)
for ASCAP analysis (PARAMFLAG9) (G1)
1703-1714 F12.6 [-] [C/Fe] [-1.5/1]?=- [C/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (C_FE)
1716-1727 F12.6 [-] [CI/Fe] [-1.7/1]?=- [CI/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (CI_FE)
1729-1740 F12.6 [-] [N/Fe] [-0.7/1.8]?=- [N/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (N_FE)
1742-1753 F12.6 [-] [O/Fe] [-0.7/0.9]?=- [O/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (O_FE)
1755-1766 F12.6 [-] [Na/Fe] [-2.7/2.2]?=- [Na/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (NA_FE)
1768-1779 F12.6 [-] [Mg/Fe] [-0.9/1.2]?=- [Mg/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (MG_FE)
1781-1792 F12.6 [-] [Al/Fe] [-2.7/2.2]?=- [Al/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (AL_FE)
1794-1805 F12.6 [-] [Si/Fe] [-1.2/1.4]?=- [Si/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (SI_FE)
1807-1818 F12.6 [-] [P/Fe] [-2.4/2.4]?=- [P/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (P_FE)
1820-1831 F12.6 [-] [S/Fe] [-1.01/1]?=- [S/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (S_FE)
1833-1844 F12.6 [-] [K/Fe] [-2.4/2.3]?=- [K/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (K_FE)
1846-1857 F12.6 [-] [Ca/Fe] [-1.21/1]?=- [Ca/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (CA_FE)
1859-1870 F12.6 [-] [Ti/Fe] [-0.8/1]?=- [Ti/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (TI_FE)
1872-1883 F12.6 [-] [TiII/Fe] [-0.95/1]?=- [TiII/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (TIII_FE)
1885-1896 F12.6 [-] [V/Fe] [-2.3/1.9]?=- [V/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (V_FE)
1898-1909 F12.6 [-] [Cr/Fe] [-2.7/1.5]?=- [Cr/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (CR_FE)
1911-1922 F12.6 [-] [Mn/Fe] [-2.2/1.2]?=- [Mn/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (MN_FE)
1924-1935 F12.6 [-] [Fe/H] [-2.4/0.9]?=- [Fe/H] from ASPCAP analysis
of combined spectrum (from X_M) (FE_H)
1937-1948 F12.6 [-] [Co/Fe] [-2.6/1.9]?=- [Co/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (CO_FE)
1950-1961 F12.6 [-] [Ni/Fe] [-2/1.7]?=- [Ni/Fe] from ASPCAP analysis of
combined spectrum (from X_M) (NI_FE)
1963-1974 F12.6 [-] [Cu/Fe] [-2.3/1.9]?=- [Cu/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (CU_FE)
1976-1983 F8.2 [-] [Ge/Fe] ?=- always blank (GE_FE)
1985-1992 F8.2 [-] [Rb/Fe] ?=- always blank (RB_FE)
1994-2005 F12.6 [-] [Ce/Fe] [-2.7/2.2]?=- [Ce/Fe] from ASPCAP analysis
of combined spectrum (from X_M) (CE_FE)
2007-2014 F8.2 [-] [Nd/Fe] ?=- always blank (ND_FE)
2016-2023 F8.2 [-] [Y/Fe] ?=- always blank (YB_FE)
2025-2035 F11.6 [-] e_[C/Fe] [0.0014/0.2]?=- [C/Fe] uncertainty
(CFEERR)
2037-2047 F11.6 [-] e_[CI/Fe] [0.003/0.2]?=- [CI/Fe] uncertainty
(CIFEERR)
2049-2059 F11.6 [-] e_[N/Fe] [0.004/0.2]?=- [N/Fe] uncertainty (NFEERR)
2061-2071 F11.6 [-] e_[O/Fe] [0.002/0.16]?=- [O/Fe] uncertainty
(OFEERR)
2073-2083 F11.6 [-] e_[Na/Fe] [0.017/0.2]?=- [Na/Fe] uncertainty
(NAFEERR)
2085-2095 F11.6 [-] e_[Mg/Fe] [0.007/0.16]?=- [Mg/Fe] uncertainty
(MGFEERR)
2097-2107 F11.6 [-] e_[Al/Fe] [0.014/0.2]?=- [Al/Fe] uncertainty
(ALFEERR)
2109-2119 F11.6 [-] e_[Si/Fe] [0.006/0.17]?=- [Si/Fe] uncertainty
(SIFEERR)
2121-2131 F11.6 [-] e_[P/Fe] [0.015/0.2]?=- [P/Fe] uncertainty (PFEERR)
2133-2143 F11.6 [-] e_[S/Fe] [0.015/0.2]?=- [S/Fe] uncertainty (SFEERR)
2145-2155 F11.6 [-] e_[K/Fe] [0.01/0.2]?=- [K/Fe] uncertainty (KFEERR)
2157-2167 F11.6 [-] e_[Ca/Fe] [0.004/0.2]?=- [Ca/Fe] uncertainty
(CAFEERR)
2169-2179 F11.6 [-] e_[Ti/Fe] [0.008/0.2]?=- [Ti/Fe] uncertainty
(TIFEERR)
2181-2191 F11.6 [-] e_[TiII/Fe] [0.04/0.2]?=- [TiII/Fe] uncertainty
(TIIIFEERR)
2193-2203 F11.6 [-] e_[V/Fe] [0.009/0.2]?=- [V/Fe] uncertainty (VFEERR)
2205-2215 F11.6 [-] e_[Cr/Fe] [0.013/0.2]?=- [Cr/Fe] uncertainty
(CRFEERR)
2217-2227 F11.6 [-] e_[Mn/Fe] [0.006/0.2]?=- [Mn/Fe] uncertainty
(MNFEERR)
2229-2239 F11.6 [-] e_[Fe/H] [0.005/0.2]?=- [Fe/H] uncertainty (FEHERR)
2241-2251 F11.6 [-] e_[Co/Fe] [0.01/0.2]?=- [Co/Fe] uncertainty
(COFEERR)
2253-2263 F11.6 [-] e_[Ni/Fe] [0.006/0.2]?=- [Ni/Fe] uncertainty
(NIFEERR)
2265-2275 F11.6 [-] e_[Cu/Fe] [0.015/0.2]?=- [Cu/Fe] uncertainty
(CUFEERR)
2277-2283 F7.2 [-] e_[Ge/Fe] ?=- always blank (GEFEERR)
2285-2291 F7.2 [-] e_[Rb/Fe] ?=- always blank (RBFEERR)
2293-2303 F11.6 [-] e_[Ce/Fe] [0.038/0.2]?=- [Ce/Fe] uncertainty
(CEFEERR)
2305-2311 F7.2 [-] e_[Nd/Fe] ?=- always blank (NDFEERR)
2313-2319 F7.2 [-] e_[Y/Fe] ?=- always blank (YBFEERR)
2321-2325 I5 --- f_[C/Fe] Flag on [C/Fe] (CFEFLAG) (G1)
2327-2331 I5 --- f_[CI/Fe] Flag on [CI/Fe] (CIFEFLAG) (G1)
2333-2337 I5 --- f_[N/Fe] Flag on [N/Fe] (NFEFLAG) (G1)
2339-2343 I5 --- f_[O/Fe] Flag on [O/Fe] (OFEFLAG) (G1)
2345-2349 I5 --- f_[Na/Fe] Flag on [Na/Fe] (NAFEFLAG) (G1)
2351-2355 I5 --- f_[Mg/Fe] Flag on [Mg/Fe] (MGFEFLAG) (G1)
2357-2361 I5 --- f_[Al/Fe] Flag on [Al/Fe] (ALFEFLAG) (G1)
2363-2367 I5 --- f_[Si/Fe] Flag on [Si/Fe] (SIFEFLAG) (G1)
2369-2373 I5 --- f_[P/Fe] Flag on [P/Fe] (PFEFLAG) (G1)
2375-2379 I5 --- f_[S/Fe] Flag on [S/Fe] (SFEFLAG) (G1)
2381-2385 I5 --- f_[K/Fe] Flag on [K/Fe] (KFEFLAG) (G1)
2387-2391 I5 --- f_[Ca/Fe] Flag on [Ca/Fe] (CAFEFLAG) (G1)
2393-2397 I5 --- f_[Ti/Fe] Flag on [Ti/Fe] (TIFEFLAG) (G1)
2399-2403 I5 --- f_[TiII/Fe] Flag on [TiII/Fe] (TIIIFEFLAG) (G1)
2405-2409 I5 --- f_[V/Fe] Flag on [V/Fe] (VFEFLAG) (G1)
2411-2415 I5 --- f_[Cr/Fe] Flag on [Cr/Fe] (CRFEFLAG) (G1)
2417-2421 I5 --- f_[Mn/Fe] Flag on [Mn/Fe] (MNFEFLAG) (G1)
2423-2427 I5 --- f_[Fe/H] Flag on [Fe/H] (FEHFLAG) (G1)
2429-2433 I5 --- f_[Co/Fe] Flag on [Co/Fe] (COFEFLAG) (G1)
2435-2439 I5 --- f_[Ni/Fe] Flag on [Ni/Fe] (NIFEFLAG) (G1)
2441-2445 I5 --- f_[Cu/Fe] Flag on [Cu/Fe] (CUFEFLAG) (G1)
2447-2451 I5 --- f_[Ge/Fe] [2/35085] Flag on [Ge/Fe] (GEFEFLAG) (G1)
2453-2457 I5 --- f_[Rb/Fe] [2/35085] Flag on [Rb/Fe] (RBFEFLAG) (G1)
2459-2464 I6 --- f_[Ce/Fe] Flag on [Ce/Fe] (CEFEFLAG) (G1)
2466-2470 I5 --- f_[Nd/Fe] [2/35085] Flag on [Nd/Fe] (NDFEFLAG) (G1)
2472-2476 I5 --- f_[Y/Fe] [2/35085] Flag on [Y/Fe] (YBFEFLAG) (G1)
2478-2489 E12.6 --- Chi2CFe [0.08/1.7e+6]?=0 Χ2 from ASPCAP fit
of [C/Fe] abundance (ELEMCHI21)
2491-2502 E12.6 --- chi2CIFe [0.07/2.3e+7]?=0 Χ2 from ASPCAP fit
of [CI/Fe] abundance (ELEMCHI22)
2504-2515 E12.6 --- chi2NFe [0.09/175428]?=0 Χ2 from ASPCAP fit
of [N/Fe] (ELEMCHI23)
2517-2528 E12.6 --- chi2OFe [0.01/1.9e+7]?=0 Χ2 from ASPCAP fit
of [O/Fe] (ELEMCHI24)
2530-2541 E12.6 --- chi2NaFe [1e-8/4152]?=0 Χ2 from ASPCAP fit
of [Na/Fe] (ELEMCHI25)
2543-2554 E12.6 --- chi2MgFe [0.02/182726]?=0 Χ2 from ASPCAP fit
of [Mg/Fe] (ELEMCHI26)
2556-2567 E12.6 --- chi2AlFe [4e-6/4.4e+6]?=0 Χ2 from ASPCAP fit
of [Al/Fe] (ELEMCHI27)
2569-2580 E12.6 --- chi2SiFe [0.08/1.6e+8]?=0 Χ2 from ASPCAP fit
of [Si/Fe] (ELEMCHI28)
2582-2593 E12.6 --- chi2PFe [2.7e-8/23676]?=0 Χ2 from ASPCAP fit
of [P/Fe] (ELEMCHI29)
2595-2606 E12.6 --- chi2SFe [9e-14/22388]?=0 Χ2 from ASPCAP fit
of [S/Fe] (ELEMCHI210)
2608-2619 E12.6 --- chi2KFe [2e-9/174060]?=0 Χ2 from ASPCAP fit
of [K/Fe] (ELEMCHI211)
2621-2632 E12.6 --- chi2CaFe [7.6e-8/6100]?=0 Χ2 from ASPCAP fit
of [Ca/Fe] (ELEMCHI212)
2634-2645 E12.6 --- chi2TiFe [0.019/125343]?=0 Χ2 from ASPCAP fit
of [Ti/Fe] (ELEMCHI213)
2647-2658 E12.6 --- chi2TiII [1.5e-13/8813]?=0 Χ2 from ASPCAP fit
of [TiII/Fe] (ELEMCHI214)
2660-2671 E12.6 --- chi2VFe [1.5e-15/13232]?=0 Χ2 from ASPCAP fit
of [V/Fe] (ELEMCHI215)
2673-2684 E12.6 --- chi2CrFe [3e-5/5060]?=0 Χ2 from ASPCAP fit
of [Cr/Fe] (ELEMCHI216)
2686-2697 E12.6 --- chi2MnFe [4e-7/5423]?=0 Χ2 from ASPCAP fit
of [Mn/Fe] (ELEMCHI217)
2699-2710 E12.6 --- chi2FeH [0.09/2.9e+6]?=0 Χ2 from ASPCAP fit
of [Fe/H] (ELEMCHI218)
2712-2723 E12.6 --- chi2CoFe [8.8e-18/169278]?=0 Χ2 from ASPCAP
fit of [Co/Fe] (ELEMCHI219)
2725-2736 E12.6 --- chi2NiFe [0.06/2.5e+6]?=0 Χ2 from ASPCAP fit
of [Ni/Fe] (ELEMCHI220)
2738-2749 E12.6 --- chi2CuFe [1.4e-8/14724]?=0 Χ2 from ASPCAP fit
of [Cu/Fe] (ELEMCHI221)
2751-2762 E12.6 --- chi2GeFe [7e-18/100670]?=0 Χ2 from ASPCAP fit
of [Ge/Fe] (ELEMCHI222)
2764-2775 E12.6 --- chi2RbFe [5.8e-19/16014]?=0 Χ2 from ASPCAP fit
of [Rb/Fe] (ELEMCHI223)
2777-2788 E12.6 --- chi2CeFe [2.8e-16/9171]?=0 Χ2 from ASPCAP fit
of [Ce/Fe] (ELEMCHI224)
2790-2801 E12.6 --- chi2NdFe [1.7e-18/4869]?=0 Χ2 from ASPCAP fit
of [Nd/Fe] (ELEMCHI225)
2803-2814 E12.6 --- chi2YFe [1.6e-18/68470]?=0 Χ2 from ASPCAP fit
of [Y/Fe] (ELEMCHI226)
2816-2862 A47 --- AName Quasi-unique identifier (ALT_ID)
2864-2877 A14 --- r_Hband Source of H-band photometry (SRC_H) (5)
2879-2890 F12.6 mag Mmag [6.7/60.1]?=- Washington M
magnitude (WASH_M)
2892-2903 F12.6 mag e_Mmag [0.003/0.8]?=- Mmag uncertainty (WASHMERR)
2905-2916 F12.6 mag T2mag [7/18]?=- Washington T2 magnitude (WASH_T2)
2918-2929 F12.6 mag e_T2mag [0.006/1]?=- T2mag uncertainty (WASHT2ERR)
2931-2942 F12.6 mag DDO51 [6.9/22.2]?=- DDO 51 magnitude (DDO51)
2944-2955 F12.6 mag e_DDO51 [0/0.7]?=- DDO51 uncertainty (DDO51_ERR)
2957-2965 F9.3 mag 3.6mag [3.9/14.1]?=- Spitzer/IRAC 3.6um
magnitude (IRAC36)
2967-2975 F9.3 mag e_3.6mag [0.01/0.4]?=- 3.6mag
uncertainty (IRAC36_ERR)
2977-2985 F9.3 mag 4.5mag [3/14]?=- Spitzer/IRAC 4.5um
magnitude (IRAC45)
2987-2995 F9.3 mag e_4.5mag [0.01/0.4]?=- 4.5mag uncertainty
(IRAC45_ERR)
2997-3005 F9.3 mag 5.8mag [2.3/13.5]?=- Spitzer/IRAC 5.8um
magnitude (IRAC58)
3007-3015 F9.3 mag e_5.8mag [0.01/0.4]?=- 5.8mag
uncertainty (IRAC58_ERR)
3017-3025 F9.3 mag 8.0mag [3/13.6]?=- Spitzer/IRAC 8.0um
magnitude (IRAC80)
3027-3035 F9.3 mag e_8.0mag [0.01/0.4]?=- 8.0mag
uncertainty (IRAC80_ERR)
3037-3045 F9.3 mag 4.5magW [-2.3/18.3]?=- WISE 4.5um magnitude
(WISE45)
3047-3055 F9.3 mag e_4.5magW [0/0.6]?=- 4.5magW uncertainty
(WISE45_ERR)
3057-3065 F9.3 mag 4.5magT [-1.5/16.5]?=- 4.5um magnitude adopted
for dereddening for targeting (TARG45)
3067-3075 F9.3 mag e_4.5magT [0/0.4]?=- 4.5magT uncertainty
(TARG45_ERR)
3077-3085 F9.3 mag AkT [-86.6/17.3]?=- K-band extinction adopted
for targetting (AK_TARG)
3087-3103 A17 --- n_AkT Method used to get targetting extinction
(AKTARGMETHOD)
3105-3113 F9.3 mag Ak [-4/10]?=- WISE all-sky K-band extinction
(AK_WISE)
3115-3124 F10.4 mag E(B-V) [0.002/63]?=- SFD reddening (SFD_EBV)
3126-3127 I2 --- Giant [-1/1] Flagged as a giant (=1) for targeting
purposes based on Washington/DDO 51
photometry (WASHDDO51GIANT_FLAG)
3129 I1 --- Star [0/1] Flagged as a star (=1) for targeting
purposes based on Washington/DDO 51
photometry (WASHDDO51STAR_FLAG)
3131-3149 I19 --- Gaia ?=0 Gaia DR2 identifier (GAIASOURCEID)
3151-3160 F10.4 mas plx [-85/297]?=- Gaia DR2 parallax
(GAIA_PARALLAX)
3162-3171 F10.4 mas e_plx [0.01/3.3]?=- plx uncertainty
(GAIAPARALLAXERROR)
3173-3181 F9.3 mas/yr pmRA [/4105.79]?=-9999 Gaia DR2 proper motion
in RA (GAIA_PMRA)
3183-3191 F9.3 mas/yr e_pmRA [0.01/5]?=- pmRA uncertainty
(GAIAPMRAERROR)
3193-3201 F9.3 mas/yr pmDE [-5818/3156]?=- Gaia DR2 proper motion
in DEC (GAIA_PMDEC)
3203-3211 F9.3 mas/yr e_pmDE [0.01/5]?=- pmDE uncertainty
(GAIAPMDECERROR)
3213-3222 F10.4 mag Gmag [3.3/21.5]?=- Gaia DR2 G-band magnitude
(GAIAPHOTGMEANMAG)
3224-3233 F10.4 mag BPmag [3.8/23.2]?=- Gaia DR2 BP-band magnitude
(GAIAPHOTBPMEANMAG)
3235-3244 F10.4 mag RPmag [2.7/20.3]?=- Gaia DR2 RP-band magnitude
(GAIAPHOTRPMEANMAG)
3246-3253 F8.2 km/s RV [-539/524]?=- Gaia DR2 radial velocity
(GAIARADIALVELOCITY)
3255-3262 F8.2 km/s e_RV [0.1/20]?=- RV uncertainty
(GAIARADIALVELOCITY_ERROR)
3264-3275 F12.6 pc Dist [3.37/25482]?=- GAIA Bailer-Jones
distance estimate r_est from GAIA DR2
(GAIAREST)
3277-3288 F12.6 pc b_Dist [0/21837]?=- 16th percentile distance
(GAIARLO)
3290-3301 F12.6 pc B_Dist [3.37/29745]?=- 84th percentile distance
(GAIARHI)
--------------------------------------------------------------------------------
Note (1): "Apstar" is the unique apStar identifier as:
apogee.[ns].[sc].APSTAR_VERS.LOC.STAR, where [ns] is for APOGEE
North/South, [sc] is for survey/commissioning.
"Ascap" is the unique ASCAP identifier as:
apogee.[ns].[sc].RESULTS_VERS.LOC.STAR
Note (2): APOGEE shared bright time observations with the Multi-Object APO
Radial Velocity Exoplanet Large-area Survey (MARVELS) project
(Ge+ 2008ASPC..398..449G 2008ASPC..398..449G and Zhao+ 2009SPIE.7440E..1EZ). See Section 2.6.
Note (3): There are two radial velocities measured for the visit spectra, both
based on cross-correlation, but with different templates: one based on
a synthetic spectrum chosen to be appropriate for the target, and
another one based the average observed for that target. The velocities
adopted are those that lead to the smallest dispersion.
Code as follows:
0 = Velocity based on the synthetic template
1 = Velocity from the observed template
See http://www.sdss.org/dr16/irspec/radialvelocities/ for further
explanations.
Note (4): Average radial velocity, weighted by S/N, using RVs determined from
cross-correlation of individual spectra with combined spectrum.
Note (5): Source of H-band data as follows:
2MASS = Cutri+, 2003, II/246 (467381 occurrences
+ 224 "2MASS_imaging" and 2 "2MASS_estimate");
2MASX = 2MASS Extended catalog (VII/233 -- 1 occurrence);
OGLE = The Optical Gravitational Lensing Experiment
(see Szymanski+ 1996, I/244 -- 5327 occurrences)
VVV = VISTA Variable in the Via Lactea Survey;
see Minniti+, 2017, II/348 (148 occurrences)
SanRoman2010 = San Roman et al., 2010, J/ApJ/720/1674 (91 occurrences)
none = 41 occurrences
SDSS_z = SDSS photometric catalog (see DR12, V/147 -- 17 occurrences
+ 1 "SDSS")
Munn17_M = Munn et al. 2017AJ....153...10M 2017AJ....153...10M (11 occurrences)
NON2MASS = 11 occurrences
AJ125_208 = Layden & Sarajedini 2003AJ....125..208L 2003AJ....125..208L (4 occurrences)
S93_V = Suntzeff et al. 1993ApJ...418..208S 1993ApJ...418..208S (2 occurrences)
Nishiyama+06 = Nishiyama et al. 2006ApJ...647.1093N 2006ApJ...647.1093N (1 occurrence)
Fiber_mag = 1 occurrence
NED = NASA/IPAC Extragalactic Database (1 occurrence)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: allvis.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 57 A57 --- Visit Unique apVisit identifier (VISIT_ID) (1)
59- 61 A3 --- Ver [r12] Release version (always "r12")
(APRED_VERSION)
63- 80 A18 --- ID 2MASS-style APOGEE identifier (APOGEE_ID)
82- 128 A47 --- Target Targeting identifier: combination of the
LOCATION_ID and APOGEE_ID (TARGET_ID)
130- 175 A46 --- File File name
177- 179 I3 --- Fiber [1/300] Fiber number (FIBERID)
181- 193 A13 --- Plate Plate identifier
195- 199 I5 --- MJD [55804/58358] MJD of observation
201- 206 A6 --- Tel Telescope identifier (TELESCOPE)
208- 221 A14 --- Survey Survey-associated with visit
223- 238 A16 --- Field Field
240- 257 A18 --- Prog Program name (PROGRAMNAME)
259- 262 I4 --- Loc [1/5807] Field location ID (LOCATION_ID)
264- 277 F14.10 deg RAdeg Right ascension (J2000) (RA)
279- 292 F14.10 deg DEdeg Declination (J2000) (DEC)
294- 307 F14.10 deg GLON ?=- Galactic longitude
309- 322 F14.10 deg GLAT ?=- Galactic latitude
324- 332 F9.3 mag Jmag [-2.3/18.5]?=- 2MASS J magnitude (J)
334- 342 F9.3 mag e_Jmag [0/10]?=- Jmag uncertainty (J_ERR)
344- 350 F7.3 mag Hmag [-2.9/24]?=- 2MASS H magnitude (H)
352- 360 F9.3 mag e_Hmag [0/10]?=- Hmag uncertainty (H_ERR)
362- 370 F9.3 mag Ksmag [-3.1/17.1]?=- 2MASS Ks magnitude (K)
372- 380 F9.3 mag e_Ksmag [0/10]?=- Ksmag uncertainty (K_ERR)
382- 386 F5.2 deg RATdeg [0] Targeting RA (always "0") (RA_TARG)
388- 392 F5.2 deg DETdeg [0] Targeting DEC (always "0") (DEC_TARG)
394- 404 I11 --- Ap1T1 First APOGEE-1 Targeting Flag
(APOGEE_TARGET1) (G1)
406- 416 I11 --- Ap1T2 2nd APOGEE-1 Targeting Flag
(APOGEE_TARGET2) (G1)
418 I1 --- Ap1T3 [0] (always "0") (APOGEE_TARGET3) (G1)
420- 611 A192 --- Flags Verbose form of targeting flags (TARGFLAGS)
613- 619 F7.2 --- SNR [-1.2/1033]?=- Median S/N per pixel
621- 625 I5 --- SFlag [0/14360] Star-level Flag (STARFLAG) (G1)
627- 700 A74 --- SFlags Verbose form of STARFLAG (STARFLAGS)
702- 724 A23 "datime" Date Observation date (DATEOBS)
726- 736 F11.3 --- JD Julian Date of observation
738- 747 F10.6 km/s BC [-30.6/30.4]?=- Barycentric correction
749- 750 I2 --- VType [-1/5] Radial velocity determination method
752- 760 F9.2 km/s RV [-1783/1672]?=- Derived radial velocity
(VREL)
762- 771 E10.4 km/s e_RV [0/1.81e+12]?=- Error in RV (VRELERR)
773- 781 F9.2 km/s VHelio [-1791/1662]?=- Derived barycentric radial
velocity
783- 792 F10.2 km/s VLSR [-1799.5/]?=999999 Inferred VLSR
794- 803 F10.2 km/s VGSR [-2001.5/]?=999999 Inferred VGSR
805- 813 F9.2 --- Chi2 [-1/999999]?=- χ2 of fit (CHISQ)
815- 822 F8.2 K Teff [/20000]?=0 Teff of best-matching synthetic
spectrum to combined spectrum (RV_TEFF)
824- 829 F6.3 [-] [Fe/H] [-2/0.5]?=- [Fe/H] of best-matching
synthetic spectrum to combined spectrum
(RV_FEH)
831- 835 F5.2 [cm/s2] logg [0.5/5]?=- logg of best-matching synthetic
spectrum to combined spectrum (RV_LOGG)
837- 842 F6.3 [-] [a/Fe] [0/0.75]?=- [α/Fe] of best-matching
synthetic spectrum to combined spectrum
(RV_ALPHA)
844- 849 F6.3 [-] [C/Fe] [0/0.5]?=- [C/Fe] of best-matching synthetic
spectrum to combined spectrum (RV_CARB)
851- 868 A18 --- synFile Filename of library of synthetic spectra
(always "apg_synthgrid.fits") (SYNTHFILE)
870 I1 --- EType [0/2] Method for RV initial estimate
(ESTVTYPE)
872- 881 F10.3 km/s RV1 [-783/776]?=- Initial RV estimate from
single visit (ESTVREL)
883- 892 F10.3 km/s e_RV1 [0/92]?=- RV1 uncertainty (ESTVRELERR)
894- 903 F10.3 km/s Vhelio1 [-770/789]?=- Initial barycentric velocity
from single visit (ESTVHELIO)
905- 914 F10.3 km/s RVRels [-2262/2188]?=- Relative radial velocity
from synthetic spectrum template matching
(SYNTHVREL)
916- 926 E11.5 km/s e_RVRels [0/5e+11]?=- RVRels uncertainty (SYNTHVRELERR)
928- 937 F10.3 km/s HRVs [-2276/2178]?=- Heliocentric RV from
SYNTHVREL (SYNTHVHELIO)
939- 948 F10.3 km/s RVRel [-1762/1657]?=- Relative radial velocity
from observed spectrum template matching
(OBSVREL)
950- 960 E11.5 km/s e_RVRel [0/3.7e+12] RVRel uncertainty (OBSVRELERR)
962- 971 F10.3 km/s HRV [-1769/1646]?=- Heliocentric RV from OBSVREL
(OBSVHELIO)
973- 983 I11 --- Ap2T1 1st APOGEE-2 Targeting
Flag (APOGEE2_TARGET1) (G1)
985- 995 I11 --- Ap2T2 2nd APOGEE-2 Targeting
Flag (APOGEE2_TARGET2) (G1)
997-1007 I11 --- Ap2T3 3rd APOGEE-2 Targeting
Flag (APOGEE2_TARGET3) (G1)
1009 I1 --- Comm? [0] Parameter set to 1 for commissioning
data, else 0 (always "0") (COMMISS)
1011 I1 --- EFlag [0/9] Bitmask that identifies main survey
targets and other classes (EXTRATARG)
1013-1020 F8.2 mag Hmin [5/13.3]?=- Bright H limit for target
selection of this object (MIN_H)
1022-1028 F7.2 mag Hmax [11/15.3]?=- Faint H limit for target
selection of this object (MAX_H)
1030-1037 F8.2 mag JKmin [0/1]?=- Blue J-K limit for target
selection of this object (MIN_JK)
1039-1045 F7.2 mag JKmax [0.8]?=- Red J-K limit for target selection
of this object (always "0.8") (MAX_JK)
1047-1093 A47 --- AName Alternative identifier (ALT_ID)
1095-1108 A14 --- r_Hmag Source employed for H magnitude (SRC_H)
1110-1118 F9.3 mag Mmag [6.7/60.1]?=- Washington M magnitude (WASH_M)
1120-1128 F9.3 mag e_Mmag [0.004/0.8]?=- Mmag uncertainty (WASHMERR)
1130-1138 F9.3 mag T2mag [7/18]?=- Washington T2 magnitude (WASH_T2)
1140-1148 F9.3 mag e_T2mag [0.006/0.9]?=- T2mag uncertainty (WASHT2ERR)
1150-1158 F9.3 mag DDO51 [6.9/22.2]?=- DDO 51 magnitude (DDO51)
1160-1168 F9.3 mag e_DDO51 [0.003/0.7]?=- DDO51 uncertainty (DDO51_ERR)
1170-1178 F9.3 mag 3.6mag [3.9/14.1]?=- Spitzer/IRAC 3.6um
magnitude (IRAC36)
1180-1188 F9.3 mag e_3.6mag [0.01/0.4]?=- 3.6mag uncertainty
(IRAC36_ERR)
1190-1198 F9.3 mag 4.5mag [3/14]?=- Spitzer/IRAC 4.5um
magnitude (IRAC45)
1200-1208 F9.3 mag e_4.5mag [0.01/0.4]?=- 4.5mag uncertainty
(IRAC45_ERR)
1210-1218 F9.3 mag 5.8mag [2.3/13.5]?=- Spitzer/IRAC 5.8um
magnitude (IRAC58)
1220-1228 F9.3 mag e_5.8mag [0.01/0.4]?=- 5.8mag uncertainty
(IRAC58_ERR)
1230-1238 F9.3 mag 8.0mag [3/13.6]?=- Spitzer/IRAC 8.0um
magnitude (IRAC80)
1240-1248 F9.3 mag e_8.0mag [0.01/0.4]?=- 8.0mag uncertainty
(IRAC80_ERR)
1250-1258 F9.3 mag 4.5magW [-2.3/18.3]?=- WISE 4.5um magnitude
(WISE45)
1260-1268 F9.3 mag e_4.5magW [0/0.6]?=- 4.5magW uncertainty (WISE45_ERR)
1270-1278 F9.3 mag 4.5magT [-1.5/16.5]?=- Target 4.5um mag (TARG45)
1280-1288 F9.3 mag e_4.5magT [0/0.4]?=- 4.5magT uncertainty (TARG45_ERR)
1290-1298 F9.3 mag AkT [-86.7/17.3]?=- K-band extinction adopted
for targetting (AK_TARG)
1300-1316 A17 --- n_AkT Method used to get targetting extinction
(AKTARGMETHOD)
1318-1326 F9.3 mag Ak [-4/10]?=- WISE all-sky K-band extinction
(AK_WISE)
1328-1336 F9.3 mag E(B-V) [0.002/62.4]?=- SFD reddening (SFD_EBV)
1338-1339 I2 --- Giant [-1/1] Evolutionary state classification
derived from Wash+DDO51 photometry
(1=giant, 0=dwarf, -1=nodata)
(WASHDDO51GIANT_FLAG)
1341 I1 --- Star [0/1] Star/extended object likelihood based
on Washington+DDO51 photometry (0=extended,
1=star-like or no data)
(WASHDDO51STAR_FLAG)
1343-1350 F8.2 mas/yr pmRA [-4328/1451]?=- Proper motion RA
measurement (PMRA)
1352-1359 F8.2 mas/yr pmDE [-1503/1277]?=- Proper motion DEC
measurement (PMDEC)
1361-1380 A20 --- r_pm Source utilized for proper motion (PM_SRC)
--------------------------------------------------------------------------------
Note (1): Unique apVisit identifier:
apogee.[ns].[sc].apred_vers.plate.mjd.fiber, where [ns] is for
APOGEE north/south, and [sc] is for survey/commissioning.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: allplate.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 31 A31 --- Visit Plate visit identifier (PLATEVISITID)
33- 36 I4 --- Loc Field location identifier (LOCATION_ID)
38- 42 I5 --- Plate Plate identifier (PLATE)
44- 48 I5 --- MJD [55804/58358] MJD of observation (MJD)
50- 52 A3 --- Ver [r12] Release version (always "r12")
(APRED_VERSION)
54- 69 A16 --- Name Field name (NAME)
71- 79 F9.5 deg RAdeg Center right ascension (J2000) (RACEN)
81- 89 F9.5 deg DEdeg Center declination (J2000) (DECCEN)
91- 94 F4.2 deg Radius Plate radius (RADIUS)
96 I1 --- Shared [0] Shared? (SHARED)
98 I1 --- FType [0] Type of field (FIELD_TYPE)
100-113 A14 --- Survey Survey this plate is part of (SURVEY)
115-132 A18 --- Prog Program name his plate is part of
(PROGRAMNAME)
134-157 A24 --- PlateRun Drill run that this plate was drilled in
(PLATERUN)
159-182 A24 --- Chunk Targeting chunk plate was drilled in (CHUNK)
184-190 F7.1 deg HA1 [-135/135] Hour angle of plate, 1 (HA)
192 I1 deg HA2 [0] Hour angle of plate, 2 (HA)
194 I1 deg HA3 [0] Hour angle of plate, 3 (HA)
196 I1 deg HA4 [0] Hour angle of plate, 4 (HA)
198 I1 deg HA5 [0] Hour angle of plate, 5 (HA)
200 I1 deg HA6 [0] Hour angle of plate, 6 (HA)
202-206 I5 --- DesignId Design identification number (DESIGNID)
208-210 I3 --- Nstd Number of tellurics (NSTANDARD)
212-214 I3 --- NSci Number of science fibers (NSCIENCE)
216-218 I3 --- NSky Number of sky fibers (NSKY)
220-228 A9 --- PlateVer Version of plate design used to make drill
file (PLATEDESIGN_VERSION)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.3 0.1nm lambda [15152.2/16943.6] Window wavelength (vacuum),
in Angstrom units
11- 15 F5.3 --- C [0/0.991] Weight, C
17- 21 F5.3 --- CI [0/1] Weight, CI
23- 27 F5.3 --- N [0/1] Weight, N
29- 33 F5.3 --- O [0/0.932] Weight, O
35- 39 F5.3 --- Na [0/1] Weight, Na
41- 45 F5.3 --- Mg [0/1] Weight, Mg
47- 51 F5.3 --- Al [0/0.978] Weight, Al
53- 57 F5.3 --- Si [0/0.672] Weight, Si
59- 63 F5.3 --- P [0/0.371] Weight, P
65- 69 F5.3 --- S [0/1] Weight, S
71- 75 F5.3 --- K [0/0.685] Weight, K
77- 81 F5.3 --- Ca [0/1] Weight, Ca
83- 87 F5.3 --- Ti [0/1] Weight, Ti
89- 93 F5.3 --- TiII [0/1] Weight, TiII
95- 99 F5.3 --- V [0/1] Weight, V
101-105 F5.3 --- Cr [0/1] Weight, Cr
107-111 F5.3 --- Mn [0/1] Weight, Mn
113-117 F5.3 --- Fe [0/0.929] Weight, Fe
119-123 F5.3 --- Co [0/0.997] Weight, Co
125-129 F5.3 --- Ni [0/1] Weight, Ni
131-135 F5.3 --- Cu [0/0.647] Weight, Cu
137-141 F5.3 --- Ge [0/0.548] Weight, Ge
143-147 F5.3 --- Rb [0/1] Weight, Rb
149-153 F5.3 --- Ce [0/0.893] Weight, Ce
155-159 F5.3 --- Nd [0/1] Weight, Nd
161-165 F5.3 --- Yb [0/1] Weight, Yb
--------------------------------------------------------------------------------
Global notes:
Note (G1): See bitmask definitions: http://www.sdss.org/dr14/algorithms/bitmasks
--------------------------------------------------------------------------------
Acknowledgements:
Carlos Allende Prieto [callende at iac.es]
History:
Table 3 from MRT published in 2020AJ....160..120J 2020AJ....160..120J
Catalogs downloaded from:
https://data.sdss.org/sas/dr16/apogee/spectro/aspcap/r12/l33
for "allStar-r12-l33.fits" and "allVisit-r12-l33.fits" files
(End) Emmanuelle Perret [CDS] 07-May-2020