VI/155 Topocentric positions of Pluto (Eglitis+, 2018)
Astrometric and photometric processing of Pluto digitized photographic
observations 1961- 1996
Eglitis I., Eglite M., Kazantseva L.V., Shatokhina S.V., Protsyuk Yu.I.,
Kovylianskaya O.E., Andruk V.M.
<Results of processing of digitized astronomical photographic plates/comp.
by V.Andruk.- Riga: LAMBERT Academic Publish., 2018.- 58 p.-
(ISBN-10:6139830346EAN: 9786139830343), p. 37-40 (2018)>
=2019yCat.6155....0E 2019yCat.6155....0E
=2018rpda.book...37E 2018rpda.book...37E
ADC_Keywords: Solar system ; Planets ; Positional data
Keywords: astrometry - photographic archive - minor planets
Abstract:
Catalog of 90 astrometric positions of Pluto have been compiled with
Tycho-2 as a reference frame from photographic observations obtained
at the Main Astronomical Observatory, National Academy of Sciences of
Ukraine, Astronomical Observatory of the Kyiv Shevchenko National
University, Research Institute Mykolaiv Astronomical Observatory and
Baldone Observatory of the University of Latvia in 1961-1996.
Astronegatives have been digitized with Epson Perfection V750 Pro and
Epson Expression 10000XL commercial scanners in 16-bit grayscale with
a resolution of 1200 dpi. (O-C) residuals obtained from the comparison
with JPL PLU055/DE433 ephemeris are 0.09 ... 0.14 arcsec. Gallery of
plate images used for catalog:
http://gua.db.ukr-vo.org/catalog_gallery.php?catn=pluton_1961_1996
Description:
Catalog of 90 astrometric positions of Pluto.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
pluto.dat 116 90 Topocentric positions of Pluto
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See also:
VI/90 : Wide-Field Plate Database (Tsvetkov+ 1997)
Byte-by-byte Description of file: pluto.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- WFPDBid WFPDB unique identifier of the plate (1)
16 A1 --- Rem [nra] Remark (2)
18- 23 I6 --- Pl Plate number according to log-book
25- 26 I2 min Exp Duration of exposure
28- 31 A4 --- Tel Telescope (3)
33- 49 A17 "datime" Obs.date Date of observation (YYYY/MM/DD.dddddd)
51- 52 I2 h RAh Right ascension (ICRF/J2000.0)
54- 55 I2 min RAm Right ascension (ICRF/J2000.0)
57- 62 F6.3 s RAs Right ascension (ICRF/J2000.0)
64 A1 --- DE- Sign of declination (ICRF/J2000.0)
65- 66 I2 deg DEd Declination (ICRF/J2000.0)
68- 69 I2 arcmin DEm Declination (ICRF/J2000.0)
71- 75 F5.2 arcsec DEs Declination (ICRF/J2000.0)
78- 82 F5.2 mag Bmag ?=99.99 Photographic B magnitude
85- 88 F4.2 arcsec e_RAs rms error of right ascension calculation
90- 93 F4.2 arcsec e_DEs rms error of declination calculation
95- 98 F4.2 mag e_Bmag rms error of B magnitude calculation
100-104 F5.2 arcsec O-CRA Difference (O-C)RA (=15(O-C)RAcos(DE))
106-110 F5.2 arcsec O-CDE Difference (O-C)DE
112-116 F5.2 mag B-V ?=99.9 Difference B-V
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Note (1): Unique identifier of the plate - the identifier in the Wide-Field
Plate Database (WFPDB) http://cdsarc.u-strasbg.fr/viz-bin/Cat?VI/90 and/or
UkrVO Digital Archive http://gua.db.ukr-vo.org/
BALDONE: plates of Baldone Schmidt telescope are not included into WFPDB.
Note (2): Remarks as follows:
n = new position
r = reprocessed position
a = data absent
Note (3): Telescopes as follows:
DLA = The Tepfer Double Long-Focus Astrograph
(D=40cm, F=550cm, Marsden's No.083)
DWA = The Zeiss Double Wide-Angle Astrograph
(D=40cm,F=220cm, Marsden's No.083)
ZA = Zonal Astrograph (D=12cm, F=204cm, Marsden's No.089)
ST = Schmidt Telescope (A=80cm, D=120cm, F=240cm, Marsden's No.069)
DAMR = Double Astrograph Merts-Repsold (D=20cm, F=426cm, Marsden's No.085)
AZT = Astronomical Mirror Telescope AZT-8
(D=70cm, F=280cm, Marsden's No.585)
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Acknowledgements:
I. Eglitis, ilgmars(at)latnet.lv
(End) Patricia Vannier [CDS] 04-Apr-2019