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Re: Aldebaran occultation
From: Paul Hirose
Date: 2017 Mar 6, 12:33 -0800
From: Paul Hirose
Date: 2017 Mar 6, 12:33 -0800
On 2017-03-05 20:23, Brad Morris wrote: > I don't know how sensitive the parallax is in the occultation situation but > it occurs to me that this could be an additional source of error. At .01′ precision, my program shows a variation in separation angle no greater than one count in the last digit for a 1′ change in latitude or longitude, or 1000 feet in height. (Alex didn't say his height, so I guessed 500 feet.) MICA's delta T is .5 second too great, but after I applied corrections the separation angle changed a trivial .01′. On 2017-03-06 6:23, Sean C wrote: > Also, I get a SD of the Moon of 16'08.27" at the time of occultation. This differs from Paul's figure by -8.13". I bet you selected geocentric origin in MICA. It's easy to overlook that setting. Topocentric SD is what's needed.
