Sensor, earth
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1989.0039.001
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- OBJECT TYPE
- SPINNING/SATELLITE
- DATE
- 1974
- ARTIFACT NUMBER
- 1989.0039.001
- MANUFACTURER
- Barnes Engineering Co.
- MODEL
- CTS/HERMES/ 13-210A
- LOCATION
- Stamford, Connecticut, United States of America
More Information
General Information
- Serial #
- 10
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- METAL SENSOR CASING/ SYNTHETIC PARTS/ METAL CASE WITH SYNTHETIC PARTS, FOAM PADDING.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 35.0 cm
- Width
- 24.0 cm
- Height
- 29.2 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Space Technology
- Category
- Communications
- Sub-Category
- N/A
Manufacturer
- AKA
- Barnes
- Country
- United States of America
- State/Province
- Connecticut
- City
- Stamford
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- CTS/HERMES PROGRAM WAS INITIATED IN 1971 & SATELLITE OPERATED FROM JAN. 17, 1976 TO NOV. 24, 1979.
- Canada
-
IDENTICAL SPINNING EARTH SENSORS WERE USED ON CTS/HERMES SATELLITE, THE CANADIAN DESIGNED & BUILT SPACECRAFT WHICH EXPLORED USE OF HIGH POWER TRANSPONDERS AT HIGHER FREQUENCIES TO EXPAND COMMUNICATIONS CAPABILITIES IN NORTHERN CANADA. - Function
-
PART OF ATTITUDE CONTROL SYSTEM USED TO DETERMINE SPIN RATE OF SATEL- LITE DURING TRANSFER ORBIT, WHEN IT WAS STILL ORBITING EARTH. DIGITAL DATA WERETRANSMITTED VIA TELEMETRY TRANSMITTER TO GROUND RECEIVE STATIONS. BASED ON INFO. FROM BOTH SUN & EARTH SENSORS, ENGINEERS FIRED THRUSTERS TO SLOW SPIN RATE & POSITION SATELLITE FOR FIRING APOGEE MOTOR IN ORDER TO PUT SPACECRAFT IN GEOSTATIONARY ORBIT (REF 1) - Technical
-
EARTH SENSOR IS PART OF COMPLEX ATTITUDE CONTROL SYSTEM COMPRISED OF SEVERAL SENSORS THAT LOOK AT EARTH & TO DETECT ANY CHANGES IN ATTITUDE. SATELLITE'S STABILITY IS CRITICAL IN ALL 3 AXIS BECAUSE ANTENNAS ARE FOCUSED ON SPECIFIC AREAS ON GROUND & SHIFT OF ONE DEGREE COULD MEAN LOSS OF SIGNAL OVER VERY LARGE AREA (1) - Area Notes
-
Unknown
Details
- Markings
- PLATE ON SENSOR READING 'SPAR AEROSPACE PRODUCTS LIMITED/ TORONTO ONTARIO CANADA/ CTS-SPINNING EARTH SENSOR/ MFG. NAME BARNES ENGINEERING COM- PANY, STAMFORD, CONN. U.S.A./ MFR. P/N 13-210A SPAR P/N 61043D5-1/ MFR. S/N 010SPAR S/N 010/ DATE OF MFR. 1/2/74 SPAR SPEC. SG.-217'/ PLATE ON CASE READING 'NOMENCLATURE CONTAINER, SHIPPING/ BEC PART NO. 253201-1008-3/ DESIGN ACTIVITY 00430 STOCK NO. None/ MANUFACTURER Zero SERIAL NO. 101/ CONTRACT NO. S/C21665A/ US BARNES ENGINEERING COMPANY STAMFORD, CONN.'/ DECAL ON CASE READING 'GREEN MAPLE/ JOINT CANADA-U.S.A./NASA/ SPACE PROGRAM'/ EMBOSSED '383401-2017- 3' ON SENSOR CASING.
- Missing
- APPEARS COMPLETE.
- Finish
- GOLD COLOURED SENSOR CASING WITH YELLOW & RED SYNTHETIC CAPS/ GREY ENAMEL PAINTED CASE WITH BLACK SYNTHETIC, GREY FOAM.
- Decoration
- SPAR LOGO ON PLATE.
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Barnes Engineering Co., Sensor, earth, 1974, Artifact no. 1989.0039, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1989.0039.001/
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