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- Xref: sparky sci.astro:14250 sci.space:19662
- Newsgroups: sci.astro,sci.space
- Path: sparky!uunet!cs.utexas.edu!bcm!aio!gothamcity!kjenks
- From: kjenks@gothamcity.jsc.nasa.gov
- Subject: Re: Hewlett Packard conin space
- Message-ID: <1993Jan21.184138.22352@aio.jsc.nasa.gov>
- Originator: kjenks@gothamcity
- Keywords: HP calculator in Shuttle
- Sender: kjenks@gothamcity.jsc.nasa.gov
- Organization: NASA/JSC/GM2, Space Shuttle Program Office
- References: <1993Jan17.171633.1@vax1.tcd.ie> <1jdru6INNijp@hpscit.sc.hp.com>
- Date: Thu, 21 Jan 1993 18:41:38 GMT
- Lines: 30
-
- In article <1jdru6INNijp@hpscit.sc.hp.com> stevep@hpscit.sc.hp.com () writes:
- >There was the HP handheld calculator that was used on some (I think)
- >Apollo missions.
-
- In the early days of the Space Shuttle Program, we used an HP
- calculator for some on-board calculations. I believe it had programs
- to figure CG and even deorbit burns if the Primary Avionics Software
- System (PASS) computers were down and if the Orbiter were out of
- communication with the Mission Control Center (MCC). The functions of
- the HP were subsumed by the Shuttle Payload On-board Computer (SPOC), a
- GRiD '386 computer, which was later replaced with the Payload and
- General Support Computer (PGSC), a GRiD 1530 '386 computer running the
- SPOC software.
-
- Before you ask, the SPOC software is NOT available to the general
- public. It includes a world map showing day/night and the current
- position of the Orbiter, updated in real time. You can see a SPOC (or
- a PGSC running SPOC software) in quite a few photos from the flight
- deck.
-
- (That's from memory; I don't have time to dig up references right now.)
-
- -- Ken Jenks, NASA/JSC/GM2, Space Shuttle Program Office
- kjenks@gothamcity.jsc.nasa.gov (713) 483-4368
-
- "It is mankind's manifest destiny to bring our humanity into space,
- to colonize this galaxy. And as a nation, we have the power to
- determine whether America will lead or will follow.
-
- I say that America must lead." -- Ronald Reagan
-