Astronomical performance of the engineering model Oersted Advanced Stellar Compass

Allan Read Eisenman; John Leif Joergensen; Carl Christian Liebe

doi:10.1117/12.255147

28 October 1996 Astronomical performance of the engineering model Oersted Advanced Stellar Compass

Allan Read Eisenman, John Leif Joergensen, Carl Christian Liebe

Proceedings Volume 2810, Space Sciencecraft Control and Tracking in the New Millennium; (1996) https://doi.org/10.1117/12.255147
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The Danish geomagnetic microsatellite, Orsted, is an autonomous sciencecraft which is scheduled for a May 1997 launch into polar orbit. It is produced by a consortium of universities, industry and government and is Denmark's first national spacecraft. NASA support includes JPL real sky evaluation of its star tracker, the advanced stellar compass (ASC). The ASC features low cost, low mass, low power, low magnetic disturbance, autonomous operation, a high level of functionality and the high precision. These features are enabled by the use of advanced optical and electronic design which permit the direct integration of the ASC and the science payload. The ASC provides the required attitude information for its associated vector magnetometer and the sciencecraft. It consists of two units, a CCD based camera head and a data processing unit with a powerful microcomputer. The microcomputer contains two large star data bases which enable the computer to recognize star patterns in the field-of-view, to quickly solve the lost-in- space acquisition problem and to derive the attitude of the ASC camera head. The flight model of the camera head has a mass and a power consumption of 127 grams (without baffle) and 0.5 W, respectively. Typical, beginning-of-life, relative measurement precision in pitch and yaw are in the order of two arcseconds (1 sigma) or better have been achieved in the tests and are substantiated.

Citation Download Citation

Allan Read Eisenman, John Leif Joergensen, and Carl Christian Liebe "Astronomical performance of the engineering model Oersted Advanced Stellar Compass", Proc. SPIE 2810, Space Sciencecraft Control and Tracking in the New Millennium, (28 October 1996); https://doi.org/10.1117/12.255147

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available