Teacup Navigation
A new program has been released by Rodger Farley of Teacup Navigation which has more bells and whistles, including crossing multiple sights and stars sights. Rodger and I worked through a half dozen of our old sextant sights from the 70s to compare results and his program works to a tee. Furthermore, it produces accurate results for 2014/15 Check it out. It’s free.
Disclaimer by Rodger Farley of Teacup Navigation: USER BEWARE! The programmer does not guarantee or warrant the accuracy or use or results of any of the materials provided here. You, the user, are TOTALLY responsible for validating the results from from these free materials, and you the user are TOTALLY responsible for any result that may occur from either the proper use, or the improper use of these materials.
Jack,
Umland has updated his programs and they no longer produce errors. What a mess- the guy can only be contacted by fax! Fax?! What’s that?!
Carl
Jack,
You can get The Nautical Almanac from 2000 to 2020 at TheNauticalAlmanac.com
Thanks,
Carl
Umland’s javascripts and tables are JUNK!!!! Particularly, the “Almanac” ones will produce results which are incorrect by a huge margin. He wrote them based on old java or whatever you call it.
Compare any set of figures using his programs against the USNO-
http://aa.usno.navy.mil/data/docs/celnavtable.php
Worse is that you can’t contact the guy with email as he claims he’s received too much spam.
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