2004-024A
Apstar V would have 50 C/Ku transponders. It will replace Apstar 1 at 138E. SS/L 1300 platform. Mass 4845 kg.
Owned by Loral Orion and partly leased to APT Satellite; Loral will use half the transponders and refer to the satellite as Telstar 18. APT Satellite refers to it as Apstar 5. Loral operations were carried out by Loral Orion's subsidiary Loral Skynet.
Launch by Zenit-3SL in 2004. The Blok DM-SL stage shut down early due to an electrical short, but on board propulsion let Telstar 18 reach its final orbit. Novosti Kosmonavtiki estimated that 1732 kg of prop was needed to reach GEO in the nominal profile, with 2059 kg needed actually. Dry mass of the satellite may have been around 2000 kg.
In 2005 following bankruptcy reorganization of the parent Loral company, Loral Orion was renamed Loral Skynet, effectively merging the parent and its subsidiary.
| Telstar 18 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2004 Jun 29 | 0358:59 | Launch by Zenit-3SL | |
| T+2:29 St 1 sep | |||
| T+3:14 Fairing sep | |||
| T+8:50 St 2 sep | -2222 x 244 x 0 | ||
| 0408 | T+8:59 DM MES-1 | ||
| 0412 | T+13:34 DM MECO-1 | 180 x 913 x 0 | |
| T+49:03 DM MES-2 | |||
| T+55:07 DM MECO-2 | |||
| 0505? | T+1:05:47 DM sep | ||
| 2004 Jun 30 | 385.98 727 x 21637 x 0.05 | ||
| 2004 Jul 2 | LAM-1 | 491.45 943 x 27558 x 0.03 | |
| 2004 Jul | LAM-2? | ||
| 2004 Jul 7 | LAM-3? | 1319.49 31215 x 35728 x 0.3 | |
| 2004 Jul 7? | LAM-4 | 1432.06 35697 x 35717 x 0.1 | |
| 2004 Jul 13 | 1436.07 35771 x 35800 x 0.1 GEO 142.0E | ||
| 2004 Jul 26 | Relocate to 138E | ||
| 2004 Aug 5 | 1436.14 35775 x 35799 x 0.0 GEO 137.9E | ||
| 2006 Aug 8 | 1436.13 35777 x 35796 x 0.0 GEO 138.0E | ||
| 2018 May 3 | 1436.07 35772 x 35800 x 0.1 GEO 138.0E | ||
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