Using a spreadsheet model, determine power requirements for a spacecraft mission with the following characteristics: The space vehicle (SV) is launched unpowered into a 900 km polar low earth orbit. The solar β angle is 0° which maximizes the eclipse for this altitude. The orbit period is 89.76 minutes with a 39.59 minute umbra. Upon separation from the launch vehicle the SV powers up and goes into Acquisition Mode. Operating on batteries, it orients itself to a sun-pointing attitude, taking the entire 1st orbit period. It is controlled by the C.