J/A+A/493/1183 Saturn major satellites observations (1874-2007) (Desmars+, 2009)
A new catalogue of observations of the eight major satellites of
Saturn (1874-2007).
Desmars J., Vienne A., Arlot J-E.
<Astron. Astrophys. 493, 1183 (2009)>
=2009A&A...493.1183D 2009A&A...493.1183D
ADC_Keywords: Planets ; Positional data
Keywords: catalogs - planets and satellites: individual: Saturn - astrometry
Abstract:
The last catalogue of observations (Strugnell & Taylor,
1990A&AS...83..289S 1990A&AS...83..289S) includes about 51000 observations (over 3500
nights) of Saturnian satellites from 1874 to 1989. Since 1989, many
observations have been published, often in different format, specific
to the publication.
This new catalogue of observations of the eight major satellites of
Saturn includes the observations of Strugnell & Taylor
(1990A&AS...83..289S 1990A&AS...83..289S), many other published since 1989 and also old
observations forgotten in the previous catalogue. All those
observations are tabulated in the consistent format.
We precise, for each observation, the corrections applied for
reduction like refraction, aberration or phase effects. Furthermore,
when it was possible, instrument and catalogue are also indicated.
The new catalogue presents more than 130000 observations (over 6000
nights) of the eight major satellites of Saturn from 1874 to 2007.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 99 59540 Catalogue of observations of Saturnian satellites
obscodes.dat 81 1403 Observatory codes
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See also:
J/A+AS/139/305 : Position of Saturn's satellites (1982-1988) (Veiga+, 1999)
J/A+AS/121/65 : 1990-1994 Saturn's satellites astrometry (Harper+ 1997)
J/A+AS/136/257 : Saturn's satellites in 1995/97 (Harper+ 1999)
J/A+A/422/377 : 1997-2000 Saturn's satellites astrometry (Qiao+, 2004)
J/other/KFNT/15.483 : Positions of Phoebe in 1998 opp. (Ledovskaya+ 1999)
J/A+A/391/767 : CCD observations of Phoebe in 1998-1999 (Fienga+, 2002)
J/A+A/383/1054 : Astrometry of Pluto and Saturn in 1995-2001 (Rapaport+, 2002)
J/AJ/103/983 : Stellar occultation candidates of Saturn (Bosh+, 1992)
J/A+A/485/293 : Events of Saturn satellites during 2009 equinox (Arlot+, 2008)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Opp Opposition number (1)
5- 22 A18 --- Date UTC date of observation (YYYY/MM/DD.ddddddd).
Not light-time corrected
24- 29 F6.3 s dt ET-UTC (seconds)
31- 33 A3 --- Obs Observatory code (2)
35- 37 I3 --- Ref [1/608] Reference code
39 I1 --- Type [0/3] Observation type (3)
41 I1 --- S [1/8] Observed satellite (4)
42 A1 --- Sr [0-8 *] Reference satellite (4)
44 I1 --- f_Obs1 [0/1] Presence flag for first observation (5)
45 I1 --- f_Obs2 [0/1] Presence flag for second observation (5)
47- 58 F12.7 --- Obs1 ?=0.0000000 First observation of pair,
RA, DRAcosDE, DRA or PA (6)
60- 71 F12.7 --- Obs2 ?=0.0000000 Second observation of pair,
DE, DDE, DDE or Sep (6)
73 I1 --- Sys [0/4] Reference system (7)
75 I1 --- Fr [0/2] Reference frame (8)
77- 83 F7.3 arcsec (O-C)1 ?=999.999 (O-C) residual for first pair of
observation (9)
85- 91 F7.3 arcsec (O-C)2 ?=999.999 (O-C) residual for second pair of
observation (9)
93 I1 --- rf [0/3] Refraction correction (10)
95 I1 --- ab [0/3] Aberration correction (10)
97 I1 --- ph [0/3] Phase effects correction (10)
99 I1 --- S2 [1/8]? (optionnal) reference satellite for
O-C computation (4)
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Note (1): Opposition number: 1 = 1610, 257 = 1874, 385 = 2007
Note (2): From Minor Planet Center (code IAU)
http://cfa-www.harvard.edu/iau/lists/ObsCodes.html
See obscodes.dat file
Note (3): Observation type as follows:
0 = α, δ (degrees)
1 = Δα*cos(δ), Δδ (arcsecond)
2 = Δα, Δδ (second, arcsecond)
3 = PA,Sep (position angle,separation) (degrees, arcsecond)
Note (4): Reference satellite as follows:
* = absolute coordinates
0 = Saturn
1 = Mimas
2 = Enceladus
3 = Tethys
4 = Dione
5 = Rhea
6 = Titan
7 = Hyperion
8 = Iapetus
Note (5): Presence flag as follows:
0 = observation missing
1 = observation present
Note (6): The content is defined by observation type.
0.0000000 if presence flag = 0
Note (7): Reference system as follows:
0 = mean equator and equinox of B1950
1 = true equator and equinox of date of the observation
2 = mean equator and equinox of J2000
3 = mean equator and equinox at the nearest beginning of a year
4 = mean equator and equinox at 1st January of the year of observation
Note (8): Reference frame as follows:
0 = topocentric
1 = geocentric
2 = heliocentric (used for mutual events)
Note (9): 999.999 if presence flag = 0;
888.888 if residual great than 100.0 arcsec
Note (10): Correction code as follows:
0 = corrected
1 = presumedly corrected
2 = not presumedly corrected
3 = not corrected
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Byte-by-byte Description of file: obscodes.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Code Observatory code
5- 13 F9.5 deg LON ? East longitude
15- 22 F8.6 --- cosLAT ? Cosinus of latitude
24- 32 F9.6 --- sinLAT ? Sinus of latitude
34- 81 A48 --- Name Observatory name
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Acknowledgements:
Josselin Desmars, desmars(at)imcce.fr
(End) Josselin Desmars [IMCCE, France], Patricia Vannier [CDS] 10-Oct-2008