1) What is more likely to be the limiting factor on JWST's service life: fuel for station-keeping, or liquid gases for cooling? If JWST runs out of coolants first, is an extended "warm mission" possible?
2) Will JWST actually "park" on L2, or orbit around it like WMAP? Where is WMAP now?
3) Once launched, how long will it take for JWST to arrive on-station? Once there, how much time will be required for calibration, etc., before JWST's science can begin?
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1) What is more likely to be the limiting factor on JWST's service life: fuel for station-keeping, or liquid gases for cooling? If JWST runs out of coolants first, is an extended "warm mission" possible?
2) Will JWST actually "park" on L2, or orbit around it like WMAP? Where is WMAP now?
3) Once launched, how long will it take for JWST to arrive on-station? Once there, how much time will be required for calibration, etc., before JWST's science can begin?
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