NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2013 Apr 24, 14:09 -0700
A double check has uncovered a declination increment summing error (subtracted instead of added). See highlighted corrections in attachments.
USCG Student Example for Low Altitude
From: Greg Rudzinski
Date: 2013 Apr 24, 13:05 -0700
While doing hard time at anchor in Prisoners Harbor earlier this week a low altitude morning sunrise lower limb observation of the Sun was made from the cockpit using a Cassens & Plath whole horizon with a 4x40mm scope. The only observational issue was a bright glare on the horizon that required shading. Sight reduction was done by Pub 229 and the Nautical Almanac was used to get GHA, declination, and perform all Hs corrections including temperature and pressure by table A4.
Greg Rudzinski
P.S. The BBQ and beverages were delicious. How did the chef time those steaks so well ;-)
----------------------------------------------------------------
NavList message boards and member settings: www.fer3.com/NavList
Members may optionally receive posts by email.
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------
Attached File:
Attached File:
Attached File:
----------------------------------------------------------------
NavList message boards and member settings: www.fer3.com/NavList
Members may optionally receive posts by email.
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------
