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General Discussion => Q&A Section => Topic started by: Spaconaut on 10/10/2013 10:15 am

Title: General GN&C Q&A
Post by: Spaconaut on 10/10/2013 10:15 am

Hi all,

I'm trying to calculate pointing requirements for a lunar/interplanetary mission. At the beginning of preliminary design, how would one go about calculating pointing accuracy requirements in terms of degrees/rad?

It's obvious that they are derived from the mission requirements, but how is that generally done - from celestial geometry/attitude geometry?

For example, the pointing requirements in this case are antenna pointing, solar pointing, delta-V pointing and stellar pointing? How could one quantify these requirements?

Looking for advice from attitude control/GNC specialists, please help, thanks! :)