ICE / ISEE-3, First comet encounter September 1985 |
ICE / ISEE-3, First comet encounter September 1985 |
Guest_PhilCo126_* |
Jan 24 2007, 06:43 PM
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#1
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Guests |
Any weblinks where we can learn something about the where-abouts of ICE/ISEE ( International Comet Explorer / International Sun Earth Explorer ) as the craft was expected to return to Earth in 2014?
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May 30 2014, 05:37 AM
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#2
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Member Group: Members Posts: 242 Joined: 28-October 12 Member No.: 6732 |
Could anyone please explain this statement to me? It sounds like a paradox: We have successfully commanded both of ISEE-3's data multiplexers into engineering telemetry mode. The current bitrate is 512 bits/sec. … When we are confident of the state of the spacecraft, we will be placing the bird in engineering telemetry mode as soon as possible.
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May 30 2014, 05:52 AM
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#3
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Senior Member Group: Members Posts: 2520 Joined: 13-September 05 Member No.: 497 |
Either it's poorly worded and the spacecraft is already in engineering mode, or it's possible to set the multiplexers to produce a modulated data stream but not pull actual data from sources on the spacecraft. In the latter case one presumes the data being sent would be fill or garbage. I haven't found any information that describes the ISEE systems in enough detail to know for sure. http://nssdc.gsfc.nasa.gov/nmc/spacecraftT...do?id=1978-079A has a little but not much.
-------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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