2002-003A
Tsubasa, the MDS-1 Mission Demonstration Satellite is a generic bus built by NEC for NASDA, with a mass of 500 kg. It is possibly derived from the OICETS satellite and the MUSES-B bus. MDS-1 will test commercial satellite components. Launch is Jan 2002 on H2A 2024 No. 2. Mass is 449 kg (or 480 kg?), box + 2 panels. Size is 1.2 x 1.2 x 1.5m launch, 3.3 x 1.6 x 2m deployed. MDS is spin-stabilized. AOCS is 4 x 1N thrusters.
Planned orbit is 500 x 35735 km x 28.5 deg.
The H-IIA-2024 has four Castor IVXL SSBs and two SRB-As. This flight uses the 4/4D-LC fairing.
H-IIA made an experimental SES-3 burn at 60 percent thrust, terminated by depletion.
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| MDS |
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| Date | Time | Event | Orbit |
|---|
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| 2002 Feb 4 | 0245 | Launch by H-2A | TNSC |
| | | T+0:10 SSB 1-2 on |
| | | T+1:10 SSB 1-2 sep 20 km 1.1 km/s | -6330 x 20 |
| | | T+1:16 SSB 3-4 on |
| | | T+2:16 SSB 3-4 sep 77 km 2.0 km/s | -6190 x 90 |
| | | T+2:24? SRB-A sep 84 km 2.0 km/s | -6190 x 100 |
| | | T+4:05 Fairing sep 168 km 2.9 km/s |
| | | T+6:30 St 1 MECO |
| | | T+6:38 St 1 sep 309 km 5.3 km/s |
| | 0251 | T+6:44 Stage 2 MES |
| | 0257 | T+12:19 Stage 2 MECO-1 | 499 x 500 |
| | | T+24:36 Stage 2 MES-2 |
| | | T+27:28 Stage 2 MECO-2 |
| | 0315 | T+30:18 Deployment of DASH failed |
| | 0325 | T+40:55? VEP-3 sep |
| | | Adapter side panel sep |
| | | Adapter side panel sep |
| | | Spinup |
| | 0331 | T+46:40 Stage 2 deploy MDS-1 |
| | | T+1:40:00 Stage 2 MES-3, test burn 50s, 60 percent thrust |
| | | T+1:40:51 MECO-3 |
| 2002 Feb 6 | 0152 | Magnetometer mast extended |
| 2003 Feb 26 | | Primary mission complete |
| 2003 Sep | | endof SEDA operations |
Payload:
- SEDA Space environment data acquisition (heavy ions, magnetometer, dosimeter); 3-m boom
- SDOM Standard dose monitor
- DOS Dosimeter
- HIT Heavy Ion Telescope
- MAG. Magnetometer