2014-065A
The Chang'e-5 test flight (CE5-T1) involves a recoverable capsule which appears to be a scaled Shenzhou descent module, about 1.4m high 1.4m dia with mass of 335 kg, size 1.258m dia 1.236m high. L/D 0.2 and pulls up to 7g in entry. 12 RCS engines (20 and 5N) Mass at landing 310 kg. Overall envelope 3.2m dia (envelope less than 3.65m) 4.22m high, less than 2450 kg of which 2115 kg for SM including 1065 kg of propellant, with solar panel power 1.6 kW and 490N engine. SM separates at 0.6m/s.
TPS mass was 122 kg, structural mass 182 kg - compared to Shenzhou 580 and 1300 kg.
Launch by CZ-3C/G2. Landing in Huofutan north of Hohhot.
Initial orbit: 209 x 314000 km; then -1600 x 366027 x 30.66 Post encounter: 80425 x 423484 x 49.94 40 min before sep, capsule pointed backwards, at 30 deg to SC inverse velocity vector (in orb plane, towards Earth). 10 min before sep, capsule is on internal power.
Reentry traj 10.66 km/s at 120 km, -5.8 deg, inclination 45 +- 0.1 deg., reentry range 5600-7100 km. Post sep evasion burn, perigee 137 km or more.
Service module will head to EML2. Tests of propgrammable 'system on chip' control computer, small star sensor, compact camera, GPS/Glonass receiver for high orbit experiment. 81 hour translunar phase, 32 hour circumlunar (Lunar SOI) phase.
| CE5T1 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2014 Oct 23 | 1800:04 | Launch by CZ-3C/G2 | XSC |
| T+2:17 booster sep | |||
| T+2:39 St 1 sep | |||
| T+4:30 Fairing sep | |||
| T+5:44 St 2 sep | |||
| 1810 | T+10:24 MECO-1 | ||
| 1813 | T+13:49 MES-2 | ||
| 1816 | T+16:47 St 3 MECO | ||
| 1818 | T+18:26 St 3 sep | 209 x 314000 km x 28.5 | |
| 2014 Oct 23 | -1281 x 404729 x 30.5 | ||
| 2014 Oct 24 | 0829 | TCM | |
| 1251 | Pass EL1:4 (RB els2) | ||
| 1313 | Pass EL1:4 (RB els1) | ||
| 2014 Oct 27? | Enter L sphere | ||
| 2014 Oct 27 | 1903? | Lunar flyby 11300 km | |
| 2200? | Return from Moon? | ||
| 2014 Oct 28? | Depart L sphere | ||
| 2014 Oct 31 | |||
| S-40min, attitude for sep | |||
| 2153:44 | Descent capsule sep at 0.591m/s, 5000 km | ? x 43 | |
| 2156 | Bus divert burn, 10.8 km/s | ||
| 2210 | Reentry attitude, -5.8 deg entry, 11 km/s | ||
| 2212 | 120 km, first blackout | ||
| First blackout 97 km | |||
| Out of blackout 86 km | |||
| 2215 | Skip | ||
| 2222 | Second blackout 84 km, final reentry | ||
| 2226 | AOS 49 km | ||
| 2232 | Para deploy 11 km | ||
| 2242 | Landing 111E 42N | ||
| N of Hohhot, Inner Mon. | |||
| 2014 Oct 31 | SM orbit | 138 x 540000? | |
| 2014 Nov 1 | SM orbit | 600 x 540000 | |
| 2014 Nov 9 | Apogee | ||
| 2014 Nov 17 | Perigee | ||
| 2014 Nov 21 | TCM | ||
| 2014 Nov 23 | TCM for EML2 arrival | ||
| 2014 Nov 27 | SM arrive EML2 | ||
| 2014 Nov 28 | TCM Enter EML2 orbit, T=14d, r=20000 x 40000 x 35000 km | ||
| 2014 Dec 11 | TCM maintain EML2 | ||
| 2014 Dec 26 | TCM maintain EML2 | ||
| 2015 Jan 4 | 1500 | Leave EML2, 57000 km from Moon | |
| 2015 Jan 5 | 0000 | Range Luna 57000 km , Earth 445000 km | |
| 2015 Jan 11 | 0700 | Enter lunar orbit | 200 x 5300 |
| 2015 Jan 12 | LOI-2 | ||
| 2015 Jan 13 | LOI-3 | 200 x 200 x 43.7 | |
| 2015 Feb 6 | Phasing rendezvous simulations | ||
| 2015 Feb 7 | Phasing rendezvous simulations | ||
| 2015 Mar 3 | Simulated ascent rendezvous begins | 18 x 180 | |
| 2015 Mar 7 | Complete simulated docking | ||
| 2015 May 28 | Landing site imaging test | ||
| 2015 Sep | Landing site imaging from 30 km | 30 x 80 | |
| 2016 Jan | Completed 4100 lunar revs | ||
| 2018 Jun | 239 km, period 131.3min | ||
No comments:
Post a Comment