| Event |
Time (mm:ss)
First Launch Opportunity |
Time (mm:ss)
Second Launch Opportunity |
| Switch to internal power |
-5:00 |
-5:00 |
| Pressurize liquid oxygen tanks |
-2:00 |
-2:00 |
| Liftoff |
00:00 |
00:00 |
| Mach 1 (738 mph) |
00:32 |
00:32 |
| Maximum dynamic pressure |
00:48 |
00:48 |
| Six solid rocket motors burnout |
01:03 |
01:03 |
| Ignite the three remaining solid motors |
01:06 |
01:06 |
| Jettison three burned out solid motors |
01:06 |
01:06 |
| Jettison three more burned out solid motors |
01:07 |
01:07 |
| Three solid rocket motors burnout |
02:09 |
02:09 |
Jettison last three rocket motors |
02:12 |
02:12 |
Main engine cutoff (MECO) |
04:23 |
04:23 |
| Separation of first and second stages |
04:31 |
04:31 |
| Second stage ignition |
04:37 |
04:37 |
| Jettison payload fairing |
04:42 |
04:42 |
| First cutoff - Second stage engine (SECO 1) |
10:04 |
09:54 |
| Begin coast phase roll |
11:40 |
11:40 |
| End coast phase roll |
14:20 |
14:20 |
| Begin coast phase pitch |
14:30 |
14:30 |
| End coast phase pitch |
17:10 |
17:10 |
| Begin 2nd coast phase roll |
17:20 |
17:20 |
| End 2nd coast phase roll |
20:24 |
19:04 |
| Second stage restart ignition |
22:24 |
21:04 |
| Second cutoff - Second stage engine (SECO 2) |
23:15 |
21:56 |
| Fire spin rockets |
24:05 |
22:46 |
| Jettison Stage 2 rocket |
24:08 |
22:49 |
| Third stage ignition |
24:45 |
23:26 |
| Third stage cutoff (TECO) |
26:13 |
24:54 |
| Inititate yo-yo weights despin |
30:55 |
29:36 |
| Spacecraft separation |
31:00 |
29:41 |
| Begin deploy of solar array |
31:43 |
30:24 |
Solar array fully deployed |
36:09 |
34:50 |
Begin search for inertial attitude |
36:55 |
35:36 |
Begin slew to DSN attitude |
42:26 |
41:07 |
SDST Exciter powered on |
44:30 |
43:11 |
SSPA powered on |
45:30 |
44:11 |
Acquistion of spacecraft signal at Canberra |
51:38 |
50:19 |
Health & Status poll |
56:38 |
55:19 |
