DSST propagator is too slow if drag is added
This may not be a huge problem, but I'm just curious. here are conditions I used:
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propagation for 1 year at a 500 km sun-synchronous orbit
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a fixed handler step for gathering orbit elements: 1 day
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gravity: degree 2, order 0
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third body: sun
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atmosphere model: DTM2000 with MarshallSolarActivityFutureEstimation
and it took with DSST: about 1000 s and with numerical: about 240 s
if without drag, it took with DSST: about 5 s and with numerical: about 85 s
Did I do something wrong or it?
Edited by Yongjun Moon