Syncom 3

USA

Launch data

Designation	00858 / 64047A
Launch date	19 Aug 1964 - 12:15:02 UT
Launch site	CC, LC17A
Launch vehicle	Delta-D (#417/D25)
Mission	Communications
Geostationary orbit:
Perigee / Apogee	35806 x 35819 km
Eccentricity
Inclination	1.5 deg
Period	1437.1 min

First geostationary satellite. Used to broadcast Tokyo′s Olympic Games to the US in October 1964 and then for military links to Vietnam.

Spacecraft data:

Prime contractor	Hughes
Platform	HS-301
Mass in orbit	40 kg
diameter	0.71 m
Height	0.39 m
Stabilization	Spin stabilized
DC power
Design lifetime

End of life

Out of service

yes

Syncom′s transmission payload

Main transponders	2
Backup transponders
Power	2 W
Bandwidth	300 phone circuits
Coverage
EIRP max
Frequencies	upload: 7.363 GHz download: 1.815 GHz

External links:

Satellite tracking (n2ya.com): Real time satellite tracking

Ref.: #1, #7, #15(28 Feb 2001), #228 - update: 27.03.20