A FULL SKY, HIGH RESOLUTION EARTH, SUN, AND MOON ATTITUDE SENSOR

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$325,000.00
Award Year:
1987
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
2811
Agency Tracking Number:
2811
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
P.o. Box 6437, 735 West Clinton Street, Ithaca, NY, 14851
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Vaughn H. Selby
Principal Investigator
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
AN ATTITUDE SENSOR FOR SPINNING OR DUAL SPIN SPACECRAFT IS PROPOSED WHICH PROVIDES FULL SKY (4 PI STERADIAN) COVERAGE PROVIDES 5 INDEPENDENT ATTITUDE MEASUREMENTS IN ADDITION TO ACCURATELY MEASURING THE EARTH'S DIAMETER (WHICH COULD BE OF SUBSTANTIAL VALUE FOR ORBIT DETERMINATION WHEN NEAR THE EARTH.) WE ANTICIPATE AN ATTITUDE ACCRUACY SUBSTANTIALLBETTER THAN 0.1 DEGREES FOR NEARLY ALL SATELLITE ORIENTATIONAND POSITIONS BETWEEN 100 N. MI. AND 250 EATH RADII. CONCEPTUALLY AND MECHANICALLY, SKY MAPPER IS A S STRAIGHTFORWARD EXTENSION OF AN EXISTING, ECONOMICAL FLIGHT PROVEN DESIGN. THE MULTIPLE, HIGH ACCURACY MEASUREMENTS GREATLY REDUCE THE PRINCIPLE ATTITUDE ERROR SOURCES. THEREFORE, SKY MAPPER WILL PROVIDE A MAJOR IMPROVEMENT IN ATTITUDE ACCURACY AT LITTLE OR NO INCREASE IN COST OR COMPLEXITY. IN ADDITION, THE SYSTEM HAS VERY SIMPLE ATTITUDE ALGORITHMS, THUS REDUCING THE COMPLEXITY AND COST OF GROUND SOFTWARE. PHASE II WOULD BE USED FOR DETAILED HARDWARE DEFINITION AND TO DEVELOP ENGINEERING MODEL FLIGHT HARDWARE AND PROTOTYPE ATTITUDE DETERMINATION SOFTWARE.

* information listed above is at the time of submission.

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