[TenTec] Equinox Day

[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
-- 
Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.