Insat 3E

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General

Designation	27951 / 03043E
Launch date	27 Sep 2003
Country of origin	India
Mission	Telecommunications and meteorology
Geostationary orbit	55°E
Launch vehicle	Ariane V162

Launch cost: $70 million. Tested at 52°E

Service was interrupted for 11 hours on 22 Sep 2012 when earth-lock was lost.

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End of life

Out of service	4 Apr 2014
Cause	moved the the junk orbit

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External resources

sat-index articles

Technical data

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Lyngsat transponder loading

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Specifications

Prime contractor	ISRO
Platform	INSAT 3
Mass at launch	2750 kg
Dry mass	1180 kg
Dimension	2.8 x 1.77 x 2.0 m
Solar array	15.4 m span
Stabilization	3-axis
DC power	EOL: 2400 W
Design lifetime	15 years

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C-band

Main transponders	24+12
Backup transponders
Power
Bandwidth	36 MHz
Coverage	India, Bengladesh, Bhutan, Nepal
EIRP max	38 dBW
G/T max	-4 dB/K
Polarization	H/V crosspol
Frequencies	extended: uplink: 6.735-6.995 GHz;downlink: 4.510-4.770 GHz standard: uplink: 5.930-6.410 GHz; downlink: 3.705-4.185 GHz

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Transponder frequency chart (GHz)

Horizontal Uplink	Horizontal Downlink	Channel	Vertical Downlink	Vertical Uplink
	3.725	1		5.950
5.970		13	3.745
	3.765	2		5.990
6.010		14	3.785
	3.805	3		6.030
6.050		15	3.825
	3.845	4		6.070
6.090		16	3.865
	3.885	5		6.110
6.130		17	3.905
	3.925	6		6.150
6.170		18	3.945
	3.965	7		6.190
6.210		19	3.985
	4.005	8		6.230
6.250		20	4.025
	4.045	9		6.270
6.290		21	4.065
	4.085	10		6.310
6.330		22	4.105
	4.125	11		6.350
6.370		23	4.145
	4.165	12		6.390
6.410		24	4.185
	4.530			6.755
6.775			4.550
	4.570			6.795
6.815			4.590
	4.610			6.835
6.855			4.630
	4.650			6.875
6.895			4.670
	4.690			6.915
6.935			4.710
	4.730			6.955

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