[TenTec] Equinox Day

[geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer)]

I think my software is looking at the upper limb appearing at sunset and
disappearing at sunset. I tested mostly sunset, since sunrise is when I
sleep best.

Still the greatest uncertainty is from the unknown effects of atmosphere
on refraction. The necessary data simply does not exist until the
instant it occurs.

73, Jerry, K0CQ
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