AUTONOMOUS ATTITUDE SENSING SYSTEM

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 625
Amount: $500,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1984
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Ithaco Inc.
735 W. Clinton St., P.o. Box 6437, Ithaca, NY, 14851
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Vaughn H. Selby
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A NEW, PRECISION THREE-AXIS ATTITUDE DETERMINATION SYSTEM LOW-EARTH-ORBIT SPACECRAFT IS THE GOAL OF THIS PROJECT. THESUN/EARTH REFERENCE SYSTEM (SERS) USES THE SUN AND THE EARTHAS ATTITUDE REFERENCES FOR UPDATING PRECISION GYROS AND HAS THE ACCURACY POTENTIAL TO MEET THE ATTITUDE DETERMINATION AND CONTROL REQUIREMENTS OFF TODAY'S STAR TRACKER/GYRO BASEDSYSTEMS. THE UNIQUENESS OF THE APPROACH IS THE PROPOSITION THAT, WHEN EARTH SENSOR DATA ARE AVERAGED OVER A FULL ORBIT ALL SYSTEMATIC AND RANDOM EFFECTS ARE GREATLY ATTENUATED, PROBABLY TO LESS THAN .01 DEGREES. FLIGHT DATA FROM LANDSATD IS ANALYSED TO SHOW THE VALIDITY OF THIS PROPOSITION.

* information listed above is at the time of submission.

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