Intelsat K
Mission typeCommunications
OperatorIntelsat / SES World Skies
COSPAR ID1992-032A Edit this at Wikidata
SATCAT no.21989
Mission durationFinal: 10 years, 2 months
Spacecraft properties
ManufacturerLockheed Martin
Launch mass2,928 kilograms (6,455 lb)
Dry mass2,836 kilograms (6,252 lb)
Start of mission
Launch date10 June 1992, 00:00 (1992-06-10Z) UTC
RocketAtlas IIA
Launch siteCape Canaveral LC-36B
Orbital parameters
Reference systemGeocentric
Longitude21.5° W
Semi-major axis43,053.0 kilometers (26,751.9 mi)
Perigee altitude36,307.5 kilometers (22,560.4 mi)
Apogee altitude37,058.0 kilometers (23,026.8 mi)
Period1,481.8 minutes
Epoch19 April 2017
Band16 IEEE Ku band

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.

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]


  1. ^ Krebs, Gunter. Intelsat K /NSS K. Gunter's Space Page. Retrieved 2017-04-19.