1966-047A
After the loss of TDA 5 during launch, the GTA-9 mission was redesigned to use the ATDA (TDA 4) satellite. The rescoped mission was designated GTA-9A.
The rendezvous sequence introduced a corrective combination maneuver which adjusted orbit height, phasing and plane all at once.
A second rendezvous with ATDA used a passive approach with an equiperiod orbit. The third rendezvous used a coelliptic method with approach from above.
On this mission the ELSS was a new model with enhanced capability.
On Jun 5 at 1502 Cernan opened the hatch, set up cameras and mirrors, and deployed the EVA handrails. Next he moved to the Adapter Module. The test of the AMU was cancelled when he became exhausted and his visor fogged. He worked at the AMU work station, and then returned to the cabin at 1648. At 1710 the hatch was closed and the cabin repressurized after a 2 hr 7 min EVA. It was decided not to jettison the AMU from the adapter as originally planned.
Splashdown was at 27 52 N, 75 00 04 W in the Atlantic.
| GTA-9A | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1966 Jun 3 | 1339:33 | Launch | |
| 1342:04 | T+2:31 BECO 64 km | -5943 x 125 x 28.6 | |
| 1342:04 | Stage 1 sep | ||
| 1345:12 | T+5:39 SECO Orbit insertion | 158.5 x 236.7 x 28.8 | |
| 1345:30 | Stage 2 sep, tailoff 31m/s | ||
| 1345:30 | IVAR burn 10m/s | 159 x 270 x 28.8 | |
| 1346:12 | IVAR OAMS off | ||
| 1350:30 | Window covers jettison | ||
| 1428:38 | Phase adjust 22m/s 1:39 | 230 x 270 x 28.8 | |
| 1534:50 | NCC Corrective combination 4.5m/s 19s | ||
| 1604:24 | NSR Coelliptic, apo 2 16m/s 1:11 | 274 x 276 x 28.8 | |
| 1700 | Tally ho ATDA | ||
| 1715:25 | TPI | ||
| 1745 | Braking at 2 km | 294 x 298 x 28.8 | |
| 1746 | At 1km, 6m/s R-dot | ||
| 1750 | At 180m, 1m/s | ||
| 1753 | At 35m | ||
| 1754:33 | Rendezvous-1 with ATDA | ||
| Flyaround inspection | |||
| 1840:33 | Sep burn 6m/s 35s | 294 x 302 x 28.8 | |
| 1924 | HA burn | ||
| 1934 | burn 11m/s | ||
| 1954:45 | TPI Burn | ||
| 2000 | At 1.5 km? | ||
| 2009 | At 1 km | ||
| 2013:31 | Braking | ||
| 2015 | Rendezvous 2 with ATDA at 30m | 296 x 296 x 28.8 | |
| 2054:31 | Sep burn 1m/s 6s | 289 x 296 x 28.8 | |
| 1966 Jun 4 | 0802:52 | Phase adjust 6m/s 3s | 289 x 309 x 28.8 |
| 0847:49s | Ht Adjust 5m/s 22s | ||
| 0934:00 | NSR circ 4m/s 25s | 307 x 309 x 28.8 | |
| 1042:01 | TPI | ||
| 1059 | At 5 km | ||
| 1107:30 | Braking | ||
| 1115? | Rendezvous 3 with ATDA | 295 x 298 x 28.8 (MSC) | |
| 1121 | Reported rendezvous 3 with ATDA | ||
| 1130 | At 30m | ||
| 1206 | ATDA shake test fails to free nose | ||
| 1221 | At 1 m | ||
| 1224 | Begin drift away | ||
| 1238:33 | Sep burn 1m/s | 292 x 298 x 28.8 (MSC) | |
| 1966 Jun 5 | 1457 | Begin depress | |
| 1459 | Cabin depressurized | ||
| 1502:25 | HO | ||
| 1503 | PLT SEVA | ||
| 1504:00 | Jettison EVA bag 1kg (left aft foot well pouch) | ||
| 1506? | Cernan egress | ||
| 1506 | PLT to AM | ||
| 1507 | S-12 retrieve | ||
| 1507 | S-12 housing jettison | ||
| 1508 | Set up handrails, movie camera | ||
| 1524 | PLT to AM | ||
| 1530 | PLT near cabin | ||
| 1534 | AMU thermal cover jettison | ||
| 1550 | PLT at AM | ||
| 1610 | PLT in AMU | ||
| 1643 | AMU test cancelled | ||
| 1645? | Tether discarded | ||
| 1651 | PLT back near cabin | ||
| 1659 | PLT ingress | ||
| 1709 | HC | ||
| 1710 | Repress | ||
| 1920 | 31s 8m/s Retro phasing burn | 270 x 291 x 28.8 | |
| 267 x 290 x 28.9 (MR) | |||
| 1966 Jun 6 | 1325:23 | Adapter module sep | |
| 1326:17 | Retrofire 90 aft, 38 down | ||
| 1327:30? | Retro module sep | ||
| 1331:00? | 264 km | -25? x 290? x 28.9 | |
| 1346? | 122 km | -23? x 306? x 28.9 | |
| 1400:23 | Splashdown | ||
| 1445? | Recovered by USS Wasp | ||
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