A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Brad Morris
Date: 2017 Feb 1, 13:53 -0500
I attach 2 kml files.
Shackleton.kml is my orginal file with the positions of Cape Belsham and Point Wild corrected and, following Lars' input, the time stamps for the DR and EP's changed to the LAN at the DR position. Otherwise all numbers in this file are as they appear in the log and reflect Worsley's positions as he believed them to be.
Chronometer Error.kml gives the positions you listed with a track that connects them. You can make adjustments either in the "Places" panel in Google Earth by right clicking and selecting "Properties" and add new items using the menu untill you are satisfied. For some things its easiest just to edit the text in the .kml files. The format is pretty easy to decipher. For some reason the Placemark "Adjusted DR 25/4" will not accept a time stamp.