Nimiq 1

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General

Designation	25740 / 99027A
Launch date	21 May 1999
Country of origin	Canada
Mission	Telecommunications
Geostationary orbit	see below
Launch vehicle	Proton #266

GEO DBS satellite operated by Telesat Canada, the well known operator of Anik. The satellite should cost $240 million (in-orbit delivery). ExpressVu Inc. will acquire 17 of the 32 transponders.

The satellite was shipped to Tyuratam for launch but had to be flown back to the US because of technical problems with wiring (on TWTAs). Test in orbit were finished on 22 Jun 1999.

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Location

Begin	End	Position
L: 21 May 1999	Jan 2003	91°W
Feb 2003	Feb 2003	82°W,
Feb 2003	late 2012	91°W (rushed back after problems with Nimiq 2)
late 2012	Mar 2013	91°W, inclined
Apr 2013	Aug 2013	44.5°E (saved a slot registration for Arabsat)
?	?	Was in fact not moved to permanent junk orbit
?	Sep 2019	91.5°E
Oct 2019		146°E

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External resources

sat-index articles

Technical data

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Lyngsat transponder loading

EIRP coverage (dBW)

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Specifications

Prime contractor	Lockheed Martin / Spar Aerospace
Platform	A2100AX
Mass at launch	3600 kg
Mass in orbit
Dimension	5.8 height x 2.4 x 2.4 m
Solar array	27 m
Stabilization	3-axis
DC power	EOL: 8600 W
Design lifetime	12 years

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Ku-band

Main transponders	32
Backup transponders
Power	120 W
Bandwidth	24 MHz
Coverage	CONUS and most of Canada
EIRP max	55 dBW
G/T max
Polarization	circular
Frequencies	uplink: 17.3-17.8 GHz downlink: 12.2-12.7 GHz

The transponders can be dual-combined to provide 230 W per transponder

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Ku-band transponder frequency chart (GHz)

RHCP Downlink	Transponder	LHCP Downlink
12.224	1
	2	12.239
12.253	3
	4	12.268
12.282	5
	6	12.297
12.311	7
	8	12.326
12.341	9
	10	12.355
12.370	11
	12	12.384
12.399	13
	14	12.414
12.428	15
	16	12.443
12.457	17
	18	12.472
12.486	19
	20	12.501
12.516	21
	22	12.530
12.545	23
	24	12.559
12.574	25
	26	12.588
12.603	27
	28	12.618
12.632	29
	30	12.647
12.661	31
	32	12676

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