STS-57 (Endeavour)

 1993-037A

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STS-57 saw retrieval of the EURECA satellite, operation of experiments in the first SPACEHAB module, and a training spacewalk.

Spacehab experiments included the Bioserve Pilot Lab, the Liquid Encapsulated Melt Zone experiment, an experimental environmental control system, and an animal enclosure module.

Middeck experiments included FARE, which was used to test fluid transfer in free fall. The SHOOT experiment on an MPESS tested transfer of superfluid helium. SHOOT was cooled down around 0330 on Jun 22; however, one of the two dewars leaked its He. On Jun 22 and 23 some curtailed tests transferring He between the dewars were successfully conducted.

At 1312 on Jun 25 Low and Wisoff opened the airlock hatch in the Spacelab Tunnel Adapter and emerged into the bay. This was the first time the Adapter hatch had been used for a spacewalk; it has been carried on every mission with a Spacelab or Spacehab module in case an emergency EVA was needed. Low moved on to the RMS foot restraint; from 1430 to 1530 the loose antenna on Eureca was latched manually, and then the remainder of the EVA was devoted to the DTO-1210 training operations. They returned to the airlock at 1839, closing the thermal cover at 1846 and latching the hatch four minutes later. Repressurization of the airlock began at 1857.

Landing attempts on Jun 29 and Jun 30 were waved off, but finally on Jul 1 OV-105 fired its engines to drop from orbit. As on STS-50, the reentry saw numerous RCS firings due to buffeting between Mach 22 and Mach 18 due to density shear. Endeavour landed on RW33 at KSC at 1252.

STS-57
Date	Time	Event	Orbit
1993 Mar 24		Tow to VAB
1993 Mar 24		ET mate	VAB
1993 Apr 28		Rollout	LC39B
1993 Jun 21	1307:22	Launch from LC39B
	1309:27	SRB sep
	1315:56	MECO	89.84 66 x 466 x 28.5
	1316:14	ET Sep
	1349:36	OMS 2 3:17 96m/s	93.23 397 x 466 x 28.5
	1352:53	OMS 2 CO
	1440	PBD Open
	1526	RMS active
	1641	Spacehab crew entry
	1828s	NC1 RCS 2m/s	93.29 404 x 467 x 28.46
1993 Jun 22	1136:01	SH1 burn RCS 14s 1m/s	93.29 403 x 467 x 28.5
	1328	RMS checkout
	1456		93.35 409 x 468 x 28.5
	1749	NC2 RCS	93.35 408 x 468 x 28.5
1993 Jun 23	1014:51	SH2 20s 1m/s	93.40 409 x 472 x 28.5
	1229:58	SH3 20s 1m/s	93.44 413 x 472 x 28.5
	1707:58	NC3 OMS 3L	94.03 467 x 475 x 28.5
	1709:06	OMS 3 CO
1993 Jun 24	0011		94.03 467 x 475 x 28.46
	0810	NSR 1m/s
	1029	NC4 2m/s
	1040	Null RCS, 0.3m/s
	1056	NCC, 1m/s
	1129	TI, 1m/s
	1202	MC1
	1222	MC2
	1232	MC3
	1242	MC4
	1315	Braking
			94.17 474 x 482 x 28.46
	1353:25	RMS grapple Eureca	94.17 474 x 481 x 28.5
	1625	RMS high hover with Eureca
	1644:32	RMS berth Eureca
1993 Jun 25	0308		94.15 472 x 481 x 28.5
	0808:56	OMS-4 lower orbit	93.25 392 x 474 x 28.5
	0808:48	OMS-4 CO
	1243	EVA depress start
	1302:38	EVA depress complete (STSMR)
	1312	SL Transfer Adapter airlock hatch open
		EURECA antenna latched
		DTO 1210 experiments
	1856:42	EVA repress start
	1910?	RMS stowed
1993 Jun 26			93.24 391 x 474 x 28.5
1993 Jun 28			93.23 391 x 473 x 28.5
1993 Jun 29	0901	PLBD closed
		Deorbit waveoff, WX
	1359	PLBD open
1993 Jun 30	0809	PLBD closed
		Deorbit waveoff, WX
	1226	PLBD open	93.22 390 x 473 x 28.46
1993 Jul 1	0915	PLBD closed
	1141:42	OMS deorbit (4:15) 124 m/s
	1145:56	OMS DO CO
	1221:12	Entry interface
	1252:16	Landed RW33 KSC
	1252:26	Drag chute deploy
	1252:34	NGTD
	1252:02	Chute sep
	1253:23	Wheels stop
	1645	Tow to OPF	OPF/1

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STS-57 crew

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• Commander Ronald J. Grabe, Col USAF

• Pilot Brian Duffy, Col USAF

• Payload Commander G. David Low, NASA

• Mission Specialist Nancy J. Sherlock, Capt. USA

• Mission Specialist Peter J. K. Wisoff, Ph.D., NASA

• Mission Specialist Janice Voss, Ph.D., NASA