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Energy supply is one of the essential concerns for spacecrafts in space, which directly effects the expected lifespan of the spacecrafts. Solar energy, which is just second to nuclear energy, is almost the most convenient and secure sources of energy for spacecrafts in orbit. Main Influence intervals of solar eclipses on spacecrafts deployed in some typical space orbits are simulated, wherein variation of altitudes in space is taken into account as one of the main factors leading to differences in influence intervals of solar eclipses. The space regions include those for sunsynchronous orbital satellites,those for middle altitude orbiting satellites,those for geostationary orbiting satellites, and those for inclined geosynchronous orbiting satellites.The influence intervals of solar eclipses will provide one of the key constraints of spacecrafts’ mission plannings. The simulation results have shown that the higher altitude, the longer duration of solar eclipses. Keywords-solar eclipse; orbit; spacecraft; mission

Influence Intervals of Solar Eclipses on Spacecrafts Deployed in Some Typical Space Orbits