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There is a problem with the motor controlling the High Gain Antenna on the SOHO spacecraft. Science data coverage may be less than complete for 1-2 weeks every 90 days (when the spacecraft gets 'flipped'). The next "keyhole" period is expected from 31 Oct - 8 Nov, 2009. |
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Most Recent Shock Candidates: |
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Date |
UT |
day of year |
F/R |
Zone |
Confidence Level |
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|
21 Oct 2009 |
2325 |
294 |
fwd |
4 |
99% |
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3 Sep 2009 |
1454 |
246 |
fwd |
4 |
99% |
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28 May 2009 |
0421 |
148 |
fwd |
4 |
99% |
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| The Proton Monitor (PM) is one of the scientific sensors on the SOHO spacecraft. | What's being plotted?? |
| the PM sensor | |
| the SOHO Spacecraft |
| The predicted position of the SOHO spacecraft
in the GSE coordinate system (X,Y,Z) in Earth radii
at 0240 GMT on Nov 23, 2009: |
Daily Orbit Data: Launch through 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 2009 2010 |
| ( 198, 69, 11) |
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