1998-046E
Launched by Pegasus XL/HAPS. This was the first HAPS-Lite with a new titanium propellant tank replacing the composite tank used on earlier HAPS flights.
Three additional objects were tracked; one presumably is HAPS in the post-depletion orbit; one is in the Orbcomm orbit and may be an adapter; the third is the Pegasus third stage.
Total mass of satellites is 336 kg. HAPS is 97 dry. Total burn time 257s. 60 kg or 73 kg prop load; 3 x MR-107K 220N thrusters (9 flown?) Isp 232? or 236? This gives mdot of 660 / 2275 = 0.29 kg/s. For 257s this is 74 kg, pretty consistent. so HAPS = 170 kg full. HAPS dry mass replaces the N2 tank and adapter on the non-HAPS Pegasus so the dry mass of the Orion 38 stage is lighter: 122 kg rather than 202 kg.
| Orbcomm FM13 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1998 Aug 2 | 1525 | L-1011 takeoff from WI | |
| 1624 | Pegasus drop, 12 km | ||
| 1624 | T+0:05 Pegasus stage 1 burn | ||
| 1625 | T+1:17 Pegasus stage 1 burnout | ||
| 1625 | T+1:38 Stage 2 burn | ||
| 1626 | T+2:18 Fairing sep | ||
| 1626 | T+2:49 Stage 2 burnout | ||
| 1630 | T+6:14 Stage 2 sep | ||
| 1630 | T+6:14 Stage 3 burn | ||
| 1631 | T+7:21 Stage 3 burnout | ||
| 1632 | T+8:20 Stage 3 sep | 260 x 730 x 44.9 | |
| 1632 | T+8:21 HAPS burn 1 34s | ||
| 1632 | T+8:55 HAPS cutoff, transfer orbit | 263? x 818? x 45.0 | |
| 1716 | T+52:39 HAPS burn 2 223s | ||
| 1720 | T+56:22 HAPS cutoff | 813 x 825 x 45.0 | |
| 1721 | T+57:02 FM13 sep | ||
| 1723 | T+59:02 FM14 sep | ||
| 1725 | T+61:02 FM15 sep | ||
| 1727 | T+1:03:02 FM16 sep | ||
| 1729 | T+1:05:02 FM17 sep | ||
| 1731 | T+1:07:02 FM18 sep | ||
| 1733 | T+1:09:02 FM19 sep | ||
| 1735 | T+1:11:02 FM20 sep | ||
| 1738 | HAPS depletion | 96.76 381 x 825 x 42.6 | |
