[Spice_discussion] Subsolar independent of observer

[michael.aye at space.unibe.ch]

Dear all,

I was wondering if there is not a way to determine the subsolar coordinates on a body independent of an observer?
If I understand things correctly, it is not ambiguous to ask at a given time 'et' which coordinate of a body is sub-solar?
The reason why I need this, is that I would like to stay away from observer kernels and light-time corrections as long as possible and only concentrate on local illumination scenarios at given times. Basically, 'I' am on the body's surface and I want to know now and 'here', where is the sub-solar point?

Best regards,
Michael


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