Polaris
Intelligence
My Polaris
Intelligence
Space & Launch
Ecosystem
About
Ctrl K
Explore
Sign in
Inmarsat 4A F4
active
Communications
GEO
COSPAR 2013-038A
Launched 7/25/2013
Admin Edit
Mission & Launch
Launch Mission
Alphasat/Insat-3D
Launch Vehicle
Ariane 5ECA
Launch Date
7/25/2013
Orbit & Mass
Orbit Class
GEO
Altitude
35,754.5 km
Inclination
0.02 deg
Dry Mass
3,500 kg
Total Mass
6,650 kg
Payload Classification
Mission Type
Communications
Payload Category
COM
Payload Class
CB
Organizations
Operator
International Maritime Organisation
Manufacturer
Airbus
Registry
COSPAR ID
2013-038A
UN Registration
ST/SG/SER.E/690
Track
Mentions
1
All verified mentions of this spacecraft in source documents.
Primary Tag
All primary tags
Secondary Tags
All secondary tags
Sort
From Date
To Date
Information Value
0.0-5.0
Actions
Filter
Inmarsat-4A F4, also known as Alphasat, launched in 2013.
General
Value 3.8
Dec 22, 2021
MHI launches Inmarsat’s first dual-band satellite