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Hylas 4

active
CommunicationsGEOCOSPAR 2018-033BLaunched 4/5/2018
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Mission & Launch
Launch Mission
Superbird 8-DSN1/Hylas 4
Launch Vehicle
Ariane 5ECA
Launch Date
4/5/2018
Orbit & Mass
Orbit Class
GEO
Altitude
35,787 km
Inclination
0.02 deg
Dry Mass
2,000 kg
Total Mass
4,050 kg
Payload Classification
Mission Type
Communications
Payload Category
COM
Payload Class
B
Organizations
Operator
Avanti
Manufacturer
Northrop Grumman
Registry
COSPAR ID
2018-033B
UN Registration
ST/SG/SER.E/864
Track
Mentions
36
All verified mentions of this spacecraft in source documents.
0.0-5.0
Actions

Avanti and StarWin successfully tested an Electronically Steered Phased Array Antenna (ESA) terminal for Communications On The Move on Avanti’s HYLAS 4 Ka-band satellite in October 2023.

CapabilityGeneralValue 4.0May 21, 2024Avanti Communications accredits StarWin’s Ka-band LeopardWin + Leopard terminals
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StarWin’s Leopard-Full Dimensional ESA and LeopardWin-Hybrid ESA terminals operate using Avanti’s HYLAS 4 Ka-band satellite and service.

GeneralRelationshipsCapabilityValue 4.0May 21, 2024Avanti Communications accredits StarWin’s Ka-band LeopardWin + Leopard terminals

Avanti’s HYLAS 4 satellite coverage is intended to provide reliable, high-speed voice and data to Senegal’s rural communities, schools, hospitals, businesses, and government departments.

CapabilityGeneralValue 3.2Mar 4, 2024Avanti secures authorization for HYLAS 4 Senegal gateway + strategic agreement with Telesat

Avanti Communications received an Infrastructure Operator Authorization for its HYLAS 4 satellite gateway station in Diamniadio, Senegal on 2024-02-29.

LegalCapabilityGeneralValue 4.7Mar 4, 2024Avanti secures authorization for HYLAS 4 Senegal gateway + strategic agreement with Telesat

The Diamniadio HYLAS 4 gateway will provide Senegal with complete, high-speed, national satellite coverage.

CapabilityValue 3.2Mar 4, 2024Avanti secures authorization for HYLAS 4 Senegal gateway + strategic agreement with Telesat

StarWin successfully tested an Electronically Steered Phased Array Antenna (ESA) terminal for Communications on the Move (COTM) on Avanti Communications’ HYLAS 4 Ka-band satellite earlier 2023-10.

CapabilityValue 4.0Oct 30, 2023StarWin + Avanti Communications bring SOTM capabilities to Africa

Hylas 4 was launched in April 2018.

PlanValue 3.0Oct 11, 20234 Geo satellites have problems

Al Yah 3, Hylas 4, and MEV-2 have each lost one of two onboard Power Processing Units since the issue emerged in 2022.

CapabilityValue 4.0Oct 9, 2023Space insurers brace for more claims after propulsion trouble on four GEO satellites

Hylas 4 launched on 2018-04-05 on an Ariane 5 and has a mass of 4,050 kg.

CapabilityPlanValue 4.5Oct 9, 2023Space insurers brace for more claims after propulsion trouble on four GEO satellites

Yahsat’s Al Yah 3, Avanti Communications’ Hylas 4, and Northrop Grumman’s Mission Extension Vehicles MEV-1 and MEV-2 are operating with reduced power to their thrusters following a problem with onboard Power Processing Units.

CapabilityGeneralValue 4.0Oct 9, 2023Space insurers brace for more claims after propulsion trouble on four GEO satellites

Avanti Communications completed the second phase of its project to build a new HYLAS 4 satellite gateway station in Dakar, Senegal.

CapabilityPlanValue 4.0May 30, 2023Avanti’s new antenna in Dakar completes second phase of HYLAS 4 satellite gateway project

HYLAS 4 (HYLAS Africa) operates at 34° West.

CapabilityValue 3.0May 30, 2023Avanti’s new antenna in Dakar completes second phase of HYLAS 4 satellite gateway project

Avanti is building a satellite gateway in Senegal to extend the coverage of Hylas 4 to West Africa.

CapabilityGrowthValue 4.0Sep 23, 2022Avanti turns to regional operator partnerships to expand satellite coverage

Avanti will combine capacity and coverage from its HYLAS 4 and HYLAS 2 satellites with Turksat’s Turksat-5B satellite to provide customers access to more than 100 Gbps of GEO Ka-band capacity.

CapabilityRelationshipsValue 4.5Sep 13, 2022Avanti Communications and Turksat’s 5-year agreement to deliver combined Ka-band coverage across Africa and Middle East

The new satellite gateway will extend HYLAS 4 coverage to Senegal, Guinea, Sierra Leone, Guinea Bissau, Gambia, and Liberia and will complete Avanti’s coverage of Ivory Coast.

CapabilityGrowthValue 4.0May 23, 2022Avanti Communications + Free In Senegal Sign Agreement For A Satellite Gateway In Senegal

Avanti Communications and Free in Senegal entered a five-year partnership to build and host a new satellite gateway in Senegal for Avanti’s HYLAS 4 Ka-band satellite.

RelationshipsPlanValue 4.6May 23, 2022Avanti Communications + Free In Senegal Sign Agreement For A Satellite Gateway In Senegal

HYLAS 4 is a Ka-band satellite operated by Avanti Communications.

CapabilityValue 4.0May 23, 2022Avanti Communications + Free In Senegal Sign Agreement For A Satellite Gateway In Senegal

Viasat Business Aviation will provide expanded coverage and capacity across parts of Europe and the Middle East on Avanti Communications Group’s HYLAS-4 and HYLAS-2 satellites.

CapabilityRelationshipsGeneralValue 4.2Oct 4, 2021Viasat Offers Ka-Band In-Flight Connectivity Coverage in Brazil for Business Aviation

Viasat plans to leverage Avanti’s HYLAS 4 and HYLAS 2 satellites beginning in October 2021.

RelationshipsPlanValue 4.0Jun 6, 2021Viasat Signs Ka-Band Capacity Lease With Avanti Communications

Viasat plans to leverage Avanti’s HYLAS 4 and HYLAS 2 satellites beginning in October 2021.

PlanRelationshipsValue 4.2Jun 2, 2021Viasat Ramps Satellite Services in the Middle East and Western Europe Ahead of ViaSat-3 Launch; Signs Ka-Band Capacity Lease Deal with Avanti Communications