NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: FOGs
From: Lu Abel
Date: 2008 Jan 31, 20:08 -0800
From: Lu Abel
Date: 2008 Jan 31, 20:08 -0800
Paul Hirose wrote: > By the way, I should have made it clear that the Gravity Probe B gyro > system uses a star tracker, so the extreme stability isn't entirely due > to the exotic gyros. True, but my understanding is that they use the star tracker to keep the satellite pointing in one direction with some incomprehensible accuracy so that they CAN detect if the exotic gyros are changing the direction they're pointing in due to the relativistic effects they're trying to detect. Lu --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
