SatEvo decay list #89

Alan Pickup (alan@wingar.demon.co.uk)
Sat, 11 Dec 1999 19:43:39 +0000

SatEvo decay list #89  (issued 1999 December 11)

This list of my satellite decay (re-entry) predictions and analyses is
posted to the satellite observers mailing list, SeeSat-L, and to the
Usenet newsgroup sci.astro.satellites.visual-observe.
Information about SeeSat-L is available at
   http://www.satellite.eu.org/seesat/seesatindex.html

In most cases, the "Actual?" decay dates are my estimates based on the
published orbital element sets ("elsets") over the object's final days.
Objects are included in the "Predicted" column if I anticipate their
decay by 2000 January 21, although some larger and/or more interesting
decayers are included beyond that date.

This and other recent decay lists are available on the WWW via my SatEvo
page at
               http://www.wingar.demon.co.uk/satevo/
Linked from this page are files containing recent elsets for all the
Iridium satellites, all the objects in this decay list, plus elsets for
other selected objects including Mir, ISS, the Shuttle, and all newly
launched and/or catalogued objects. I also maintain a large file,
satbase.tle, containing recent elsets for more than 8,000 satellites.
This is available in zipped form from the same address.

I publish my own and SpaceCom's updated predictions for the larger 
decayers during their final days on my Decay Watch page at
               http://www.wingar.demon.co.uk/satevo/dkwatch/
This includes my predicted elsets for these objects.

   #    Designation    Name              --- Decay (1999/2000) ---
                                            Predicted   Actual?

 22847   92- 38 C   Sampex Scout G-1 deb           November 24.6
 14610   83-113 E   DMSP F7 deb                    November 27.6
 25957   99- 61 B   Shenzhou CZ-1F r               November 27.85 Note 3
 25976   97- 79 K   Cosmos 2347 deb                November 28
 25969   97- 79 C   Cosmos 2347 deb                November 29
  7853   72- 58 Z   Lndst 1 Delta 1 deb            November 30.3
 25014   97- 63 B   STEP M4 Pegasus r              November 30.39
 25972   97- 79 F   Cosmos 2347 deb                November 30
 25914   99- 50 B   EchoStar 5 Centaur r           November 30.93
 19579   78-110 AK  C 1045 SL-14 deb               December  1    Note 2
  1844   65-106 B   Cosmos 100 r                   December  1.15
 25971   97- 79 E   Cosmos 2347 deb                December  1
 25960   99- 61 E   Shenzhou Orbital Module        December  1.97
 22924   93- 74 C   USA 97 Centaur r2              December  5.28
 22534   93- 11 D   Astro D M-3S2 deb              December  7
 24084   94- 29 EF  STEP-2 Pegasus deb             December  8    Note 1
 22365   92- 93 BE  C 2227 Zenit deb               December  9.1  Note 1
 25975   97- 79 J   Cosmos 2347 deb                December  9.5  Note 1
 25970   97- 79 D   Cosmos 2347 deb                December 11.0
 25923   99- 52 B   Tlstr 7 Ariane r               December 11.10
 22334   92- 93 X   C 2227 Zenit deb               December 11.3
 25088   97- 79 A   Cosmos 2347                    December 11.53
 24034   94- 29 CF  STEP-2 Pegasus deb    December 12
 19377   88- 69 A   Molniya 1-73          December 16
 23008   92- 93 JE  C 2227 Zenit deb      December 16
 25058   65- 98 L   Alouette 2 deb        December 16
  1832   65- 82 DX  OV2-1/LCS 2 deb       December 17
 23935   78- 96 F   Tiros N deb           December 17
 24109   94- 29 FG  STEP-2 Pegasus deb    December 18
  7960   72- 58 CQ  Lndst 1 Delta 1 deb   December 19
 24372   94- 29 PZ  STEP-2 Pegasus deb    December 19
 25974   97- 79 H   Cosmos 2347 deb       December 19
  4869   70- 25 EZ  Thorad Agena D deb    December 20
 25423   98- 46 L   Orbcomm Pegasus deb   December 21
 25790   99- 34 B   QuikScat Titan 2 r    December 21
  4981   70- 25 HB  Thorad Agena D deb    December 22
 21960   85-118 M   C 1710 SL-12 deb      December 23
 16308   79- 17 BX  Solwind deb           December 25
 24110   94- 29 FH  STEP-2 Pegasus deb    December 25
 15707   83- 44 AA  Cosmos 1461 deb       December 26
 24620   94- 29 ZY  STEP-2 Pegasus deb    December 26
 24225   94- 29 KY  STEP-2 Pegasus deb    December 27
 14447   71- 15 CR  Cosmos 397 deb        December 30
 25220   87- 68 AX  Meteor 2-16 deb       December 30
 24522   94- 29 UW  STEP-2 Pegasus deb     January  1
  7847   72- 58 T   Lndst 1 Delta 1 deb    January  2
 22564   93- 15 B   UFO 1 r1               January  4
 24111   94- 29 FJ  STEP-2 Pegasus deb     January  4
 25796   80- 89 CK  Cosmos 1220 deb        January  4
  7842   72- 58 N   Lndst 1 Delta 1 deb    January  6
  1962   65- 82 GX  OV2-1/LCS 2 deb        January  7
 24240   94- 29 LP  STEP-2 Pegasus deb     January  7
 13964   83- 25 A   Molniya 1-57           January  8?
 22346   92- 93 AK  C 2227 Zenit deb       January 10
 24368   94- 29 PV  STEP-2 Pegasus deb     January 10
 24230   94- 29 LD  STEP-2 Pegasus deb     January 11
 24148   94- 29 GX  STEP-2 Pegasus deb     January 12
 24388   94- 29 QR  STEP-2 Pegasus deb     January 12
 20759   90- 43 L   Macsat Scout G-1 deb   January 13
 16885   86- 57 A   Molniya 1-67           January 14?
  3343   68- 66 E   Explr 39 Scout deb     January 15
  7969   75- 56 B   Cosmos 744 r           January 15
 24614   94- 29 ZS  STEP-2 Pegasus deb     January 15
 22890   83- 75 G   Cosmos 1484 deb        January 18
 22822   93- 11 H   Astro D M-3S2 deb      January 21
  9854   77- 15 B   Cosmos 895 r           January 26
 22702   93- 42 C   GPS 2-21 Delta r2      January 27
 25176   98- 11 B   COMETS H2 r           February  1
 25769   99- 30 B   Starshine             February  7
 25911   99- 49 E   Glblstar 33 Soyuz r   February  7
 25947   99- 58 E   Glblstar 31 Soyuz r   February 20
 22876   93- 67 B   Cosmos 2265 r         February 21
 20919   90- 93 B   Inmarsat2-F1 Delta2 r    March  3
 11331   79- 32 A   Cosmos 1093              March 15
 15977   85- 74 A   Molniya 1-64             March
 16609   86- 17 A   Mir                      April     Note 4
 25965   99- 62 E   Glblstar 29 Soyuz r      April


Notes

1. SpaceCom has yet to confirm this decay.

2. No recent elsets.

3. The decay time for the Shenzhou Long March rocket (#25957 = 99- 61 B)
is based on my SatEvo analysis of the final elsets. There are reports
that the decay was widely observed from SE Spain at November 27 21:30
UTC (November 27.90). SpaceCom's final decay notice claims that this
decayed at 17:44 UTC (November 27.74).

4. Mir was boosted on December 8 and 9, raising its orbit from 323 x 319
km to 333 x 323 km. The estimate above is on the (probably unrealistic)
basis that there are no further manoeuvres.


Alan
-- 
 Alan Pickup | COSPAR 2707:  55d53m48.7s N  3d11m51.2s W   156m asl
 Edinburgh   | Tel: +44 (0)131 477 9144     Fax: +44 (0)870 0520750
 Scotland    | SatEvo page:   http://www.wingar.demon.co.uk/satevo/

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