|
Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://lnfm1.sai.msu.ru/neb/nss/OBS_COLL/J/jo0003.html
Дата изменения: Tue Jun 22 18:51:00 2004 Дата индексирования: Mon Oct 1 23:32:39 2012 Кодировка: |
Contents.
planet: 5 - Jupiter
satellites: J6-Himalia : 1,
J7-Elara : 8,
J8-Pasiphae: 5
total number: 14
type: absolute
dates: 1997-1999
observatory: 673 - Table Mountain Observatory, Wrightwood
Reference.
Bill Owen (2001)
Communication to NSDC. Mar 28, 2001.
E-mail: wmo@wansor.jpl.nasa.gov
Informations.
relative to: absolute
reference frame: astrometric
centre of frame: topocentre
epoch of equinox: J2000
time scale: UTC
reduction: Catalogue - AST
coordinates: absolute
diff. refraction: no information
receptor: CCD
telescope: Reflector, D=0.61 m, F= 16*D
observers: Owen B.
data included in standard data file: no
Comments.
These are reduced positions from CCD observations
of three of the outer Jovian satellites, taken on three nights
in the past three years. (Our observing time is limited,
and these satellites seem to avoid areas of the sky with
good reference stars.) The detector is a 4K x 4K CCD,
15 um/pixel, with 1 pixel subtending 0.32 arcsec and the entire
field of view about 22 arcmin.
The observations were reduced to the ACT catalog using Eichhorn's
overlapping plate method. They are reported below in the format
used by the MPC.
Format.
1. Number of satellite (N sat)
2. Year of the moment of observation
3. Month of the moment of observation
4. Day with decimals of the moment of observation
5. Hour of right ascension (alpha, h)
6. Minute of right ascension (alpha, m)
7. Second of right ascension (alpha, s)
8. Degree of declination (delta, deg)
9. Minute of declination (delta, ' )
10. Second of declination (delta, '' )
-------------------------------------------------
N Year alpha delta
sat month
day h m s deg ' ''
-------------------------------------------------