Ekspress-A [RSCC]
Official name EXPRESS 4A
Alternative name Ekspress A1R (Express 4A)
Cospar ID 2002-029A
Norad ID 27441
Launch date 2002-06-10
Launch site TTMTR
Launch vehicle Proton-K Blok-DM-2M
Country/Organization Russia
Type application Communication
Operator RSCC (Kosmicheskiya Svyaz)
RCS size LARGE
Decay date ON ORBIT
Period (min) 1451.53
Inclination (deg) 10.29
Perigee (km) 36063
Apogee (km) 36114
Eccentricity 0.000706596284134835
Mean motion (revs. per day) 0.992056657457993
Semi-Major axis (km) 42466.635
Raan (deg) 42.1323
Arg of perigee (deg) 71.2757
Shape Cyl + 2 Pan
Mass (kg) 2600
Diameter (m) 2
Height (m) 2
Span (m^2) 27
Lifetime 7 years
Contractors NPO Prikladnoi Mekhaniki (NPO PM) (Bus), Alcatel Space (Payload)
Equipment 12 C-transponders, 5 Ku-band transponders
Propulsion 8 × SPT-100 Stationary Plasma Thrusters
Configuration MSS-2500-GSO (MSS-740)
Power 2 deployable solar arrays, batteries

Express-A satellites are designed for operation in the fixed satellite service. Their transponder payloads make it possible to retransmit all types of traffic, including television and radio programming, telephony, data, videoconferencing as well as high-speed Internet.

The Express-A satellites are equipped with 17 high-power C- and Ku-band transponders. Russia's Krasnoyarsk-based NPO PM is the prime contractor for the Express-A-series satellites. The satellite bus is developed by NPO PM, while Alcatel Espace of France supplies the payload.

Ekspress A2 was retired in 2015 and was moved into a graveyard orbit above the geostationary belt. Ekspress A4 was retired at the beginning of 2020 and was moved into a graveyard orbit.

Satellite COSPAR Date LS Launch Vehicle Remarks
EXPRESS 2A 2000-013A 2000-03-12 TTMTR Proton-K Blok-DM-2M
EXPRESS 3A 2000-031A 2000-06-24 TTMTR Proton-K Blok-DM-2M
EXPRESS 4A 2002-029A 2002-06-10 TTMTR Proton-K Blok-DM-2M