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From Wikipedia, the free encyclopedia

Intelsat 803 → NSS-5
Mission typeCommunications
OperatorIntelsatSES World Skies
COSPAR ID1997-053A
SATCAT no.24957
Mission duration14 years
Spacecraft properties
Spacecraft typeAS-7000
ManufacturerLockheed Martin
Launch mass3,412 kilograms (7,522 lb)
Start of mission
Launch dateSeptember 23, 1997, 23:58 (1997-09-23UTC23:58Z) UTC[1]
RocketAriane-42L H10-3
Launch siteKourou ELA-2
ContractorArianespace
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Longitude50.5° E[2]
Semi-major axis42,164.0 kilometres (26,199.5 mi)[2]
Perigee altitude35,778.2 kilometres (22,231.5 mi)[2]
Apogee altitude35,809.1 kilometres (22,250.7 mi)[2]
Inclination3.8 degrees[2]
Period1,436.1 minutes[2]
EpochMay 5, 2017[2]
Transponders
Band38 C Band, 6 Ku band
Coverage areaPacific Ocean
Intelsat 8
 

NSS-5 (Formerly known as Intelsat 803 and NSS-803) is a communications satellite operated by Intelsat and after by SES World Skies. Launched in 1997 it was operated in geostationary orbit at a longitude of 50.5 degrees east for around 14 years.

Satellite

The third of six Intelsat VIII satellites to be launched, NSS-5 was built by Lockheed Martin. It was a 3,412-kilogram (7,522 lb) spacecraft. The satellite carried a 2xLEROS-1B apogee motor for propulsion and was equipped with 38 C Band transponders and 6 Ku band transponders, powered by 2 solar cells more batteries.[3] It was designed for a fourteen-year service life.[4]

Launch

The launch of NSS-5 made use of an Ariane 4 rocket flying from Guiana Space Centre, Kourou, French Guiana. The launch took place at 23:58 UTC on September 23, 1997, with the spacecraft entering a geosynchronous transfer orbit.[1] NSS-5 subsequently fired its apogee motor to achieve geostationary orbit.

See also

References

  1. ^ a b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved May 5, 2017.
  2. ^ a b c d e f g "NSS 5 (INTELSAT 803 )". N2YO. Retrieved May 5, 2017.
  3. ^ Wade, Mark. "Intelsat". Encyclopedia Astronautica. Retrieved May 5, 2017.[permanent dead link]
  4. ^ Krebs, Gunter. "Intelsat-8 (801, 802, 803, 804) / NSS 803 → NSS 5". Gunter's Space Page. Retrieved May 5, 2017.


This page was last edited on 7 December 2019, at 23:27
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