NASA-LLIS-0403

Lessons Learned - Thrusters Fired on Launch Pad (1975)

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T17:25:58Z
date available	2017-09-04T17:25:58Z
date copyright	04/26/1996
date issued	1996
identifier other	CJBEQCAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std/handle/yse/149103
description abstract	Abstract: Inadvertent commanding of the safing sequence while the Viking (VO-2) spacecraft was still on the launch pad enabled the RCS thrusters. The thrusters fired in an attempt to compensate for the Earth's rotation, resulting in a significant loss of attitude control gas. When command sequences intended to be exercised only in the event of abnormal spacecraft activity are stored onboard, consider the consequences of their activation during system test or the pre-launch phases.
language	English
title	NASA-LLIS-0403	num
title	Lessons Learned - Thrusters Fired on Launch Pad (1975)	en
type	standard
page	3
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1996
contenttype	fulltext
subject keywords	Ground Operations
subject keywords	Pre-Launch Constraints
subject keywords	Software
subject keywords	Spacecraft