J/A+AS/121/65 1990-1994 Saturn's satellites astrometry (Harper+ 1997)
CCD astrometry of Saturn's satellites 1990-1994
Harper D., Murray C.D., Beurle K., Williams I.P., Jones D.H.P.,
Taylor D.B., Greaves S.C.
<Astron. Astrophys. Suppl. Ser. 121, 65 (1997)>
=1997A&AS..121...65H 1997A&AS..121...65H (SIMBAD/NED BibCode)
ADC_Keywords: Planets ; Positional data
Keywords: satellites of Saturn - astrometry
Description:
In this paper, we publish 1206 measurements of positions of the major
satellites of Saturn made in 1990, 1991, 1993 and 1994 using CCD
detectors attached to the 1-metre Jacobus Kapteyn Telescope on the
island of La Palma. Analysis of the data as inter-satellite positions
shows that the observations of Tethys, Dione, Rhea and Titan have
root-mean-square residuals of 0.08 arcseconds, corresponding to 500km
at the distance of Saturn.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table6 160 152 Observations made in 1990
table7 160 58 Observations made in 1991
table8 160 35 Observations made in 1993
table9 160 33 Observations made in 1994
--------------------------------------------------------------------------------
See also:
J/A+AS/136/257 : Saturn's satellites in 1995/97 (Harper+ 1999)
J/A+AS/120/107 : 1989-1994 CCD observations of Triton (Veiga+ 1996)
J/A+AS/131/291 : 1995-1997 CCD positions of Triton (Veiga+ 1998)
J/A+AS/136/445 : CCD observations of Nereid (Veiga 1999)
J/A+AS/139/305 : Position of Saturn's satellites (1982-1988) (Veiga+, 1999)
J/A+AS/139/47 : 1995 Saturnian satellites mutual events (Emelianov+, 1999)
J/A+AS/143/405 : Astrometric observations of Helene (Veiga+, 2000)
J/A+A/383/296 : Saturnian Satellites positions (1996-2000) (Peng+, 2002)
J/A+A/391/767 : CCD obs. of Phoebe in 1998-1999 (Fienga+, 2002)
J/A+A/422/377 : 1997-2000 1994 Saturn's satellites astrometry (Qiao+, 2004)
Byte-by-byte Description of file: table6 table7 table8 table9
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 yr OBS.Y Year of the observation (1)
6- 7 I2 "month" OBS.M Month of the observation (1)
9- 17 F9.6 d OBS.D Day of the observation (1)
19- 23 F5.1 s Exp Length of the exposure; add half of this value
to the start date to obtain the mid-exposure
time
25- 32 8I1 --- Boo [0/1] Boolean flags indicating presence (1)
or absence (0) of each satellite in the image
33- 40 F8.2 pix xiMimas ? Column coordinate xi of Mimas, if present
41- 48 F8.2 pix etaMimas ? Row coordinate eta of Mimas, if present
49- 56 F8.2 pix xiEnc ? Column coordinate xi of Enceladus, if present
57- 64 F8.2 pix etaEnc ? Row coordinate eta of Enceladus, if present
65- 72 F8.2 pix xiTethys ? Column coordinate xi of Tethys, if present
73- 80 F8.2 pix etaTethys ? Row coordinate eta of Tethys, if present
81- 88 F8.2 pix xiDione ? Column coordinate xi of Dione, if present
89- 96 F8.2 pix etaDione ? Row coordinate eta of Dione, if present
97-104 F8.2 pix xiRhea ? Column coordinate xi of Rhea, if present
105-112 F8.2 pix etaRhea ? Row coordinate eta of Rhea, if present
113-120 F8.2 pix xiTitan ? Column coordinate xi of Titan, if present
121-128 F8.2 pix etaTitan ? Row coordinate eta of Titan, if present
129-136 F8.2 pix xiHyp ? Column coordinate xi of Hyperion, if present
137-144 F8.2 pix etaHyp ? Row coordinate eta of Hyperion, if present
145-152 F8.2 pix xiIap ? Column coordinate xi of Iapetus, if present
153-160 F8.2 pix etaIap ? Row coordinate eta of Iapetus, if present
--------------------------------------------------------------------------------
Note (1): The year, month and day give U.T.C. time of the start of the exposure
--------------------------------------------------------------------------------
Acknowledgements: David Harper
(End) Patricia Bauer [CDS] 29-Jul-1996