ULYSSES Spacecraft Attitude History

Last 20 Records of Attitude History File

    Start UTC            End UTC           RA      Dec  SpinRate   DeltaV   Data
[yy ddd hh mm ss]   [yy ddd hh mm ss]     [deg]   [deg] [rad/s]    [m/s]    Flags
=================================================================================
 09 151 23 25 00     09 152 17 20 00     330.771 -39.766 0.5176    0.0021    000
 09 152 17 24 00     09 155 17 20 00     330.801 -39.629 0.5176    0.0015    000
 09 155 17 33 00     09 157 23 20 00     330.970 -39.134 0.5175    0.0057    100
 09 157 23 30 00     09 159 23 20 00     331.127 -38.773 0.5175    0.0044    000
 09 159 23 30 00     09 161 23 20 00     331.236 -38.431 0.5174    0.0040    000
 09 161 23 29 00     09 163 23 20 00     331.373 -38.090 0.5174    0.0038    100
 09 163 23 29 00     09 165 19 20 00     331.542 -37.789 0.5178    0.0040    000
 09 165 19 29 00     09 165 19 20 00     331.739 -37.486 0.5178    0.0038    000
 09 165 19 29 00     09 167 21 20 00     331.739 -37.486 0.5178    0.0038    000
 09 167 21 29 00     09 170 21 20 00     331.930 -37.152 0.5178    0.0042    000
 09 170 21 34 00     09 171 17 20 00     332.234 -36.696 0.5177    0.0059    000
 09 171 17 25 00     09 172 23 20 00     332.320 -36.550 0.5176    0.0017    000
 09 172 23 26 00     09 174 23 20 00     332.456 -36.374 0.5175    0.0025    000
 09 174 23 25 00     09 175 23 20 00     332.556 -36.226 0.5174    0.0019    100
 09 175 23 25 00     09 176 23 20 00     332.669 -36.064 0.5174    0.0021    100
 09 176 23 30 00     09 178 21 20 00     332.915 -35.726 0.5173    0.0044    100
 09 178 21 29 00     09 179 23 20 00     333.075 -35.443 0.5172    0.0038    100
 09 179 23 26 00     09 180 17 20 00     333.203 -35.281 0.5172    0.0023    000
 09 180 17 24 00     09 181 11 20 00     333.293 -35.168 0.5171    0.0015    100
 09 181 11 25 00     09 189 23 59 59     333.434 -35.050 0.5171    0.0021    000
================================================================================

Updated: 3-JUL-2009 00:30 UTC

The full attitude history file which contains the spacecraft attitude history since launch is available as a text file.

Notes:

1. The spacecraft attitude (RA - right ascension, Dec - declination) is given in the EME.50 (Earth Mean Equatorial system of 1950) coordinate system. Times are spacecraft event times.
2. The Start and End UTC of each record gives the period of validity for the reported attitude. In almost all cases, it can be assumed that a spacecraft manoeuvre took place during the interval between attitude history records.
3. The DeltaV value is the amount of delta-V in the radial direction from the spacecraft to the Earth produced by the manoeuvre which resulted in the reported attitude.
4. The last record in the AHF is only a placeholder. The data in this record are the values to be expected after the next manoeuvre. The End UTC for this record is meaningless and is simply set to 00:00 of the day following the manoeuvre (for want of a better value).
5. The definitions of the Data Flags are as follows (from left to right), 0 being the inverse:
   • 1 == attitude is a prediction
   • 1 == value for delta-V is an estimate
   • 1 == value for delta-V not available