REFSMMAT
id:
refsmmat-309-4969866
title:
REFSMMAT
text:
REFSMMAT is a term used by guidance, navigation, and control system flight controllers during the Apollo program, which carried over into the Space Shuttle program. REFSMMAT stands for "Reference to Stable Member Matrix". It is a numerical definition of a fixed orientation in space and is usually defined with respect to the stars. It was used by the Apollo Primary Guidance, Navigation and Control System (PGNCS) as a reference to which the gimbal-mounted platform at its core should be oriented. E
brand slug:
wiki
category slug:
encyclopedia
description:
Space flight term
original url:
https://en.wikipedia.org/wiki/REFSMMAT
date created:
date modified:
2023-02-09T08:27:29Z
main entity:
{"identifier":"Q7307611","url":"https://www.wikidata.org/entity/Q7307611"}
image:
fields total:
13
integrity:
14