Tropical Rainfall Measuring Mission (TRMM)
Tropical Rainfall Measuring Mission (TRMM)
Tropical Rainfall Measuring Mission (TRMM)
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<strong>TRMM</strong> Lifetime Prediction<br />
PVT Actual Propellant Remaining No August 2001 Boost March 2007 PlusEarly March 2007 MeanNom<br />
600<br />
Propellant Remaining (Kg)<br />
500<br />
400<br />
300<br />
200<br />
Initial fuel: 800+ kg<br />
Orbit raised from<br />
350 km. to 402 km.<br />
Station-keeping fuel sufficient to reach 2012-2013<br />
based on current solar flux forecasts<br />
<strong>TRMM</strong> fuel currently at 119 kg<br />
100<br />
No Boost<br />
Early solar cycle phase, high solar flux<br />
Nominal<br />
0<br />
Jan-01 Jan-02 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 Jan-12 Jan-13 Jan-<br />
Date (Mon-YY)<br />
3
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