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Projected ISS reboost requirements?
Does there exist an estimate of, or can someone here calculate, what the ISS reboost requirements will be in the coming years (i.e., out to 2010 or 2015) if construction goes more or less as now envisaged and the solar cycle follows current predictions? Perhaps the appropriate measure would be newton-seconds per year or kilograms of propellant per year. |
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Projected ISS reboost requirements?
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#3
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Projected ISS reboost requirements?
Dr John Stockton wrote: For the present rate of drop of about 1 mm/s, the drag is equivalent to about 0.05 micro-g; for M = 200 tons, that's 0.1 N implying 3 MN-s/yr. So if the reboost is done with the Progress main engine with a nominal Isp 305 s = Ve ~= 3,000 m/s that's 3e6/3000 ~= 1,000 kg/yr of propellant, no? That seems low from what I remember of the Progress fuel capacity, but I may be misremembering. |
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Projected ISS reboost requirements?
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