// GEO · EAST

83.5°E

INMARSAT, Ltd.

Satellites

First launch

Latest launch

High

Congestion

Co-located satellites (2)

Satellite	Operator	Purpose	Launched
INMARSAT 5 F4	INMARSAT, Ltd.	Communications	17
TJS-4 (Tongxin Jishu Shiyan 4) TJS-4	China Academy of Space Technology (CAST)	Technology Development	19

Nearby positions

83.53°E0.0° away →83°E0.5° away →82.94°E0.6° away →82.5°E1.0° away →

Satellite names, operators, and positions from UCS Satellite Database (May 2023). FCC authorization data from the FCC Approved Space Station List. Satellite identifiers (NORAD/COSPAR) omitted; UCS identifier accuracy has not been independently verified. Curated descriptions and valuations from Clarke.