Intelsat K (later termed Satcom K4 and NSS-K) was a geostationary communication satellite built by Lockheed Martin. It was located at orbital position of 21.5 degrees west longitude and was owned by SES World Skies. The satellite was based on the AS-5000 platform and its life expectancy was 10 years. It was retired from service in August 2002 and transferred to a graveyard orbit.

Intelsat K

Mission type	Communications
Operator	Intelsat / SES World Skies
COSPAR ID	1992-032A
SATCAT no.	21989
Mission duration	Final: 10 years, 2 months
Spacecraft properties
Bus	AS-5000
Manufacturer	Lockheed Martin
Launch mass	2,928 kilograms (6,455 lb)
Dry mass	2,836 kilograms (6,252 lb)
Start of mission
Launch date	10 June 1992, 00:00 (1992-06-10Z) UTC
Rocket	Atlas IIA
Launch site	Cape Canaveral LC-36B
Orbital parameters
Reference system	Geocentric
Regime	Geostationary
Longitude	21.5° W
Semi-major axis	43,053.0 kilometers (26,751.9 mi)
Perigee altitude	36,307.5 kilometers (22,560.4 mi)
Apogee altitude	37,058.0 kilometers (23,026.8 mi)
Inclination	12°
Period	1,481.8 minutes
Epoch	19 April 2017
Transponders
Band	16 IEEE Ku band

The satellite was purchased from Intelsat by New Skies and renamed to NSS-K. It is also the former Satcom K4 of GE Americom. The satellite was successfully launched into space on June 10, 1992, by means of an Atlas-Centaur from the Cape Canaveral Air Force Station, United States. It had a launch mass of 2836 kg. It was equipped with 16 Ku band transponders.^[1]