Renseignements généraux

Nº de série

10

Nº de partie

1

Nombre total de parties

2

Ou

S/O

Brevets

S/O

Description générale

METAL SENSOR CASING/ SYNTHETIC PARTS/ METAL CASE WITH SYNTHETIC PARTS, FOAM PADDING.

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

35,0 cm

Largeur

24,0 cm

Hauteur

29,2 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Technologie de l'espace

Catégorie

Communications

Sous-catégorie

S/O

Fabricant

Ou

Barnes

Pays

United States of America

État/province

Connecticut

Ville

Stamford

Contexte

Pays

Inconnu

État/province

Inconnu

Période

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.

Fonction

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)

Technique

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)

Notes sur la région

Inconnu

Détails

Marques

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.

Manque

APPEARS COMPLETE.

Fini

GOLD COLOURED SENSOR CASING WITH YELLOW & RED SYNTHETIC CAPS/ GREY ENAMEL PAINTED CASE WITH BLACK SYNTHETIC, GREY FOAM.

Décoration

SPAR LOGO ON PLATE.