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Re: MCO again
- To: meteorite-list@meteoritecentral.com
- Subject: Re: MCO again
- From: Ron Baalke <BAALKE@kelvin.jpl.nasa.gov>
- Date: Thu, 14 Oct 1999 15:25:49 GMT
- Old-X-Envelope-To: <meteorite-list@meteoritecentral.com>
- Resent-Date: Thu, 14 Oct 1999 11:27:47 -0400 (EDT)
- Resent-From: meteorite-list@meteoritecentral.com
- Resent-Message-ID: <J5aGmC.A.HeG.9XfB4@mu.pair.com>
- Resent-Sender: meteorite-list-request@meteoritecentral.com
>Some of you may be aware of this, but the failure of that mission has
>been attributed to a "Metric-English" slip. Lockheed Martin
>Astronautics, the contractor, measured the force of small control
>thrusters in the English unit, pounds, whereas JPL had expected newtons.
All of the navigation is done using the metric system, and Lockheed Martin
was to provide their portion in metric units, but failed to comply.
>The Mars Polar Lander, due to arrive in December, was built by the same
>team and is being checked out now.
It has already been checked and verified not to be a problem. The error was
in the data relating to the reaction wheels on the orbiter; the lander
doesn't carry reaction wheels.
Ron Baalke
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