SaudiGeoSat-1/HellasSat-4

SaudiGeoSat 1/HellasSat 4, also known as HellasSat 4/SaudiGeoSat 1 (abbreviated HS-4/SGS-1), is a Saudi and Greek geosynchronous communication satellite of KACST and Hellas Sat. It was built by Lockheed Martin and was launched on 5 February 2019 on board Ariane flight VA247.

Hellas Sat 4/SaudiGeoSat 1
NamesHellas Sat 4, SaudiGeoSat-1, Saudi Geostationary Satellite 1, HS-4/SGS-1
Mission typeTelecommunications
OperatorKACST, Hellas Sat
COSPAR ID2019-007A
SATCAT no.44034
Spacecraft properties
BusA2100
ManufacturerLockheed Martin
Launch mass6,495 kilograms (14,319 lb)
Start of mission
Launch date21:01:00, 5 February 2019 (UTC) (2019-02-05T21:01:00Z)
RocketAriane flight VA247
Launch siteELA-3, Guiana Space Centre
ContractorArianespace
Orbital parameters
Longitude39° East
Altitudegeosynchronous (≈35786 km)
 

The satellite will provide telecommunications capabilities, including television, Internet, telephone and secure communications in the Middle East, South Africa and Europe. It is the 16th Saudi satellite launched into space[1][2][3] and the 4th Greek and Cypriot satellite.

Manufacturing

SGS-1 satellite was developed, manufactured and tested by Lockheed Martin in collaboration with KACST where 11 Saudi engineers were trained and certified by Lockheed Martin.[2]

Launch and Specification
Main article: Ariane flight VA247

HS-4/SGS-1 was launched on an Ariane 5 operated by Arianespace from the Guiana Space Center in French Guiana on Ariane flight VA247.[1]

The satellite weighted 6,495 kilograms (14,319 lb) fully fuelled for launch, and it was placed into a geostationary transfer orbit. It will maintain a geosynchronous orbit at 39° East longitude.[4]

gollark: Can someone check my scroll?
gollark: Wait a minute, why does my Egg Drop Soup scroll banner show 1 frozen, 1 hidden?
gollark: DC is made of numbers, in the purely useless sense.
gollark: Basicallyscore = views + unique views * 6 + clicks * 12if hatchling, optimal score is 13000 at 4d and 5000 at 7d (between the two extremes, it's averaged)if egg, optimal score is 5000 at 4d and 0 at 7d (averaged again)it's safeish if the score is less than 1.5x the optimal score.
gollark: ```javascriptfunction getScore(dragon) { return dragon.views + (dragon.uniqueViews * 6) + (dragon.clicks * 12);}const nextStageAge = 72;const maxTime = 168;function getOptimalScore(dragon) { const time = dragon.hoursRemaining; const age = maxTime - time; if (dragon.type == "hatchling") { return 5000 + (8000 * (age / nextStageAge)); } else { return 5000 * (age / nextStageAge); }}function getScoreRatio(dragon) { return getScore(dragon) / getOptimalScore(dragon);}function isSafe(dragon) { return getScoreRatio(dragon) < 1.5;}```

References
  1. "Ariane Flight VA247". Arianespace. Retrieved 5 February 2019.
  2. "Saudi Arabia to launch 16th satellite into space". Arab News. 5 February 2019. Retrieved 5 February 2019.
  3. Lockheed Martin Completes Hellas-Sat-4/SaudiGeoSat-1 Satellite Assembly and Ships to Environmental Testing. Lockheed Martin - Press release. 30 November 2017.
  4. Clark, Stephen. "Live coverage: Ariane 5 set to launch satellites for Saudi Arabia and India – Spaceflight Now". Retrieved 5 February 2019.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.