Title:
POSITION DETERMINATION BY OBSERVING A CELESTIAL OBJECT TRANSIT THE SUN OR MOON
Document Type and Number:
WIPO Patent Application WO/2018/125311
Kind Code:
A3
Abstract:
A navigation system determines a position by referring to artificial or natural satellites or other space objects during daylight or when the objects are in a planet's shadow. A telescope and image sensor observe and image shadows of the objects as the objects transit the sun or a sunlit surface of a planet or moon, thereby solving problems related to the two key times during which traditional SkyMark navigation is difficult or impossible.
Inventors:
LANE BENJAMIN F (US)
WHITACRE WILLIAM W (US)
WHITACRE WILLIAM W (US)
Application Number:
PCT/US2017/050091
Publication Date:
August 09, 2018
Filing Date:
September 05, 2017
Export Citation:
Assignee:
CHARLES STARK DRAPER LABORATORY INC (US)
International Classes:
G01C21/02; G01C3/08; G01S3/785; G02B23/12; G06K9/00; G06T7/00
Domestic Patent References:
| WO2008045014A2 | 2008-04-17 |
Foreign References:
| US20090177398A1 | 2009-07-09 | |||
| US20120249775A1 | 2012-10-04 |
Attorney, Agent or Firm:
JAKOBSCHE, George J. et al. (US)
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