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    Re: Venus Moon Occultation Lunar Captured by DSLR
    From: Antoine Couëtte
    Date: 2015 Dec 9, 03:43 -0800

    Dear Norm,

    Well done again, and congratulations indeed !

    Could you publish the following : date and location (Lat Long and elevation above WGS84 ellipsoid) + if available temperature and pressure (although this is somewhat secondary in such occultation case) as well as the relationship between the video time scale and the UT1 time scale (it should a simple and constant offset, or at worse a linear difference law). If you can publish all of these - provided that you have them at hand - this will be an excellent tool for me to accurately check some points in my Lunar Software when dealing with "non zero diameter" bodies, with Venus being the case here.

    Probably this will also be of high interest to Paul Hirose, and maybe also to Frank. Frank's On-Line Lunar Calculator has been improved into tackling "zero distance Lunars" i.e. actual Occultations very well. This is a remarkable achievement since as we know, the accuracies of [all known] classical Lunar Methods definitely degrade for short distances between Body and Moon Limb(s), hence the constant caveats about their usable minimum distances (generally not to be inferior to a very minimum of 5° to 7°) between Moon Limb and other body limb.

    Thank you for your Kind Attention and

    Best Friendly Regards

    Kermit

       
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