SatTrack V4.8 Shadow Analysis


Input file:

  Shadow.THEMIS_E


Object:

  Object Name       : THEMIS E
  Object Number     : 99005
  Element Set Number: 0
  Reference Orbit   : 0
  Element Set Epoch : N/A
  Element Set Age   : N/A
  Launch Date/Time  : 17-Feb-2007  2007/048  23:01:00.000 UTC
  Orbit Geometry    : 67516.056 km x 4061.611 km at 4.834 deg
  Avrg Nodal Period : 1436.418 min
  Propagation Model : External Ephemeris


Shadow Statistics:

  Begin of Analysis Interval  : 13-Feb-2009  2009/044  00:00:00 UTC
  End of Analysis Interval    : 01-Apr-2009  2009/091  11:59:55 UTC
  Total Time Interval         : 47.500 d
  Time Resolution             : 30.000 s
  Shadow Entry/Exit Condition : 99.0 % of Full Sunlight
  Number of Shadow Periods    : 14
  Shortest Gap Between Shadows: 1262.000 min
  Longest Gap Between Shadows : 1356.000 min


  Shortest Penumbra   Longest Penumbra   Average Penumbra   Total Penumbra   Fraction of Analysis Interval
         [min]              [min]              [min]              [min]                  [%]

           0.0               80.0               24.1              337.0                  0.5


    Shortest Umbra      Longest Umbra      Average Umbra      Total Umbra    Fraction of Analysis Interval
         [min]              [min]              [min]              [min]                  [%]

           0.0              172.0              132.4             1854.0                  2.7


   Shortest Shadow     Longest Shadow     Average Shadow     Total Shadow    Fraction of Analysis Interval
         [min]              [min]              [min]              [min]                  [%]

          80.0              187.5              156.5             2191.0                  3.2


Shadow Periods:

     Shadow Begin    -       Shadow End          Entry Penumbra   Exit Penumbra   Total Penumbra     Total Umbra     Total Shadow      Depth

  2009/078 08:59:30  -  2009/078 10:19:30  UTC       80.0 min         0.0 min         80.0 min           0.0 min         80.0 min       88.6 %
  2009/079 08:55:30  -  2009/079 10:46:00  UTC       19.5 min        18.5 min         38.0 min          72.5 min        110.5 min      100.0 %
  2009/080 08:56:30  -  2009/080 11:08:00  UTC       15.0 min        14.0 min         29.0 min         102.5 min        131.5 min      100.0 %
  2009/081 08:59:00  -  2009/081 11:26:30  UTC       13.0 min        11.5 min         24.5 min         123.0 min        147.5 min      100.0 %
  2009/082 09:03:30  -  2009/082 11:43:30  UTC       11.5 min        10.5 min         22.0 min         138.0 min        160.0 min      100.0 %
  2009/083 09:09:00  -  2009/083 11:58:30  UTC       11.0 min         9.5 min         20.5 min         149.0 min        169.5 min      100.0 %
  2009/084 09:15:30  -  2009/084 12:12:00  UTC       10.0 min         8.5 min         18.5 min         158.0 min        176.5 min      100.0 %
  2009/085 09:23:00  -  2009/085 12:24:30  UTC        9.5 min         8.0 min         17.5 min         164.0 min        181.5 min      100.0 %
  2009/086 09:31:00  -  2009/086 12:36:00  UTC        9.0 min         8.0 min         17.0 min         168.0 min        185.0 min      100.0 %
  2009/087 09:39:00  -  2009/087 12:46:00  UTC        9.0 min         7.0 min         16.0 min         171.0 min        187.0 min      100.0 %
  2009/088 09:48:00  -  2009/088 12:55:30  UTC        8.5 min         7.0 min         15.5 min         172.0 min        187.5 min      100.0 %
  2009/089 09:57:30  -  2009/089 13:04:30  UTC        8.5 min         7.0 min         15.5 min         171.5 min        187.0 min      100.0 %
  2009/090 10:07:00  -  2009/090 13:12:30  UTC        8.5 min         6.5 min         15.0 min         170.5 min        185.5 min      100.0 %
  2009/091 10:17:30  -  2009/091 11:59:30  UTC        8.0 min         0.0 min          8.0 min          94.0 min        102.0 min      100.0 %