HYLAS-4

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HYLAS-4
Operator Avanti Communications [1]
COSPAR ID 2018-033B OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 43272 OOjs UI icon edit-ltr-progressive.svg
Mission duration15 years [1]
Spacecraft properties
Bus Star-3 Bus
Manufacturer Orbital ATK [2]
Launch mass4,000 kg
Start of mission
Launch date5 April 2018, 21:34 UTC [2]
Rocket Ariane 5 flight VA242 [2]
Launch site ELA-3, Guiana Space Centre [2]
Contractor Arianespace [1]
Orbital parameters
Eccentricity circular [3]
Periapsis altitude 35,786 km [3]
Apoapsis altitude 35,786 km [3]
Period 23h 56min [4]
Transponders
BandKa-band [1]
Capacityup to 28 GHz [1]

HYLAS-4 is a telecommunications satellite owned and operated by Avanti Communications and manufactured by Orbital ATK (now Northrop Grumman Innovation Systems) that was launched by an Ariane 5 rocket on 5 April 2018. [2]

Contents

Mission

The satellite is built to provide high speed data transmission services to Africa, Latin America and Europe. [5] It is based on Orbital ATK's Star-3 Bus, delivering 64 28 GHz fixed beams covering Africa and parts of Europe. There are also four independent steerable beams that can serve Africa, South America and Europe. [6] The capacity will partially be used to allow Avanti to expand into new markets and provide growth for existing markets. [1]

Launch

The satellite was launched into geosynchronous orbit by Arianespace on an Ariane 5 rocket in its ECA variant from ELA-3 at Guiana Space Centre in French Guiana. The launch was originally planned in early 2017 but has been delayed to 21 March 2018, and then to 5 April 2018. [1] [2] The satellite reached its geostationary orbital position by 19 April 2018. [7]

References

  1. 1 2 3 4 5 6 7 "HYLAS 4". space.skyrocket.de. Retrieved 2018-03-03.
  2. 1 2 3 4 5 6 "Ariane 5 (VA242) • DSN-1 & Hylas 4". spaceflight101.com. Retrieved 2018-03-03.
  3. 1 2 3 "What Is a Geosynchronous Orbit?". Space.com. Retrieved 2018-03-03.
  4. ↑ "Sidereal Day | COSMOS". astronomy.swin.edu.au. Retrieved 2018-03-03.
  5. ↑ "Hylas 4 satellite to be launched by Arianespace - Arianespace". Arianespace. Retrieved 2018-03-03.
  6. ↑ "Avanti Communications - Satellite Fleet - HYLAS 4". Avanti Communications. Archived from the original on 2018-10-25. Retrieved 2018-10-25.
  7. ↑ "Avanti Communications announces its HYLAS 4 satellite has successfully reached its geostationary orbital position | Investor Relations". 10 July 2023. Archived from the original on 25 October 2018. Retrieved 25 October 2018.
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