question about terms used with Pioneer 6 |
question about terms used with Pioneer 6 |
Mar 6 2019, 02:40 AM
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#1
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Junior Member Group: Members Posts: 91 Joined: 21-August 06 Member No.: 1063 |
I have been doing some research on Pioneer 6. I needed to convert a 2- 36 bit word double precision octal sequence into the number of seconds past 1950. The image Iam uploaded provide examples of what the answers should be after conversion to date. My main question is, does anyone know what MSP and LSP stand for? I was thinking maybe MSP and LSP was some well known JPL abreviation for something. |
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Mar 10 2019, 06:34 PM
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#2
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Newbie Group: Members Posts: 15 Joined: 17-July 15 Member No.: 7604 |
I think the first three octal digits are the exponent (power of two) with an offset applied (which I'm too lazy to work out) followed by the mantissa. The examples do not seem to be the exact number of days I was initially expecting; the bit patterns seem to match the number of seconds part-way through the specified days. They do not seem to be an exact number of seconds, either, so presumably this format recorded higher-precision times than mere seconds.
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