J/other/KFNT/15.483 Positions of Thebe and Amalthea (Ledovskaya+ 1999)
Astrometric CCD observations of Jupiter's inner satellites Thebe and
Amalthea and Saturn's satellite Phoebe in 1998 opposition.
Ledovskaya I.V., Jockers K., Karpov N.V., Sergeev A.V.
<Kinematika Fiz. Nebesn. Tel., 15, 483 (1999)>
=1999KFNT...15..483L 1999KFNT...15..483L
ADC_Keywords: Planets ; Positional data
Keywords: planets and satellites - satellites of Jupiter - astrometry
Description:
The file jovsat.dat contains 35 intersatellite positions of inner
Jovian moons Thebe and Amalthea, derived from the observations made
with the 2-m Zeiss RCC telescope of Terskol Observatory (Terskol peak,
Northern Caucasus, long=42.50083°, lat= 43.27427°, h=3100m) in
1998. The Two-Channel Focal Reducer of the Max-Planck Institute for
Aeronomy (MPAe,Germany) was used for acquisition of the images. We
provide delta(alpha) and delta(delta) of Thebe and Amalthea with
respect to the Galilean satellites, that were used as the reference
points forming the reference direction on the frames. Astrometric
topocentric coordinates J2000.0 of the Galilean satellites were used
for scale and orientation angle determination. The array scale was
corrected for differential refraction and differential aberration to
first-order. All observed positions are compared with the theoretical
ones.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
jovsat.dat 43 35 Observed astrometric positions of inner Jovian
satellites
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See also:
J/A+A/311/710 : Faint Jovian satellites ephemerides (Rocher+, 1996)
J/A+A/314/312 : Galilean satellites mutual events in 1997 (Arlot 1996)
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+AS/139/305 : Position of Saturn's satellites (1982-1988) (Veiga+, 1999)
J/A+A/383/724 : 1999-2000 CCD obs. of inner Jovian moons (Kulyk+, 2002)
J/A+A/391/767 : CCD obs. of Phoebe in 1998-1999 (Fienga+, 2002)
Byte-by-byte Description of file: jovsat.dat
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Bytes Format Units Label Explanations
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1- 4 I4 yr OBS.Y Date of observation in UT (year)
6- 7 I2 --- OBS.M Date of observation in UT (year)
9- 10 I2 d OBS.D Date of observation in UT (year)
11- 13 I3 h OBS.h Time of observations in UT (hour)
14- 16 I3 min OBS.m Time of observations in UT (min)
17- 19 I3 s OBS.s Time of observations in UT (sec)
20- 27 F8.2 arcsec Xpos X=15*delta(alpha)*cos(delta)
28- 35 F8.2 arcsec Ypos Y=delta(delta)
36- 39 I4 --- Ns Number of satellite (1)
40- 43 I4 --- Nrs Number of reference satellite (1)
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Note (1): Satellite numbers:
505: Amalthea
514: Thebe
501: Io
502: Europa
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Acknowledgements: Kulyk Irina
(End) Patricia Bauer [CDS] 03-Dec-2001