NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2014 Oct 3, 08:46 -0700
The correct date for the 10 AH Sun observations is the day of posting 2 October 2014 (not 1 October as seem on the work sheet). My smart phone , which is smarter than me, used the correct date for the reductions. If reductions are done for 1 October then 20 NM intercepts will result from the known GPS position which is a mistake red flag. I hate it when I lose a day :(
Greg Rudzinski
From: Greg Rudzinski
Date: 2014 Oct 2, 18:07 -0700
Marty,
See attached a set of 10 Sun observations from this afternoon using an AH H2O shielded, Navy MK 3 sextant with 2 power scope, stopwatch with split function, and Palm Pilot cell phone app. 5 index error checks were made that averaged close to zero. Intercepts were all better than 1' with the average at 0.2' away. Its still a small sample but there is probably a few tenths of index correction to add. The Sun was superimposed for determining index error and AH altitude. You should quickly be able to improve intercepts to no worse than 1.5' with practice and some statistics.
Greg Rudzinski
Attached File:
