Ekspress-AM [GDK]
Official name EXPRESS AM-1
Alternative name Ekspress-AM 1
Cospar ID 2004-043A
Norad ID 28463
Launch date 2004-10-29
Launch site TTMTR
Launch vehicle Proton-K Blok-DM-2M
Country/Organization Russia
Type application Communication
Operator RSCC (Kosmicheskiya Svyaz)
RCS size MEDIUM
Decay date ON ORBIT
Period (min) 1451.66
Inclination (deg) 9.98
Perigee (km) 36059
Apogee (km) 36122
Eccentricity 0.00087280586303875
Mean motion (revs. per day) 0.991967816155298
Semi-Major axis (km) 42468.635
Raan (deg) 45.9552
Arg of perigee (deg) 230.1882
Shape Cyl + 2 Pan
Mass (kg) 2542
Diameter (m) 2
Height (m) 2
Span (m^2) 27
Lifetime 12 years
Contractors NPO Prikladnoi Mekhaniki (NPO PM) (Bus), NEC (Payload)
Equipment 18 Ku-band (95 W), 1 C-Band (140 W), 8 C-band (40 W), 1 L-band (30 W) transponders
Propulsion 8 × SPT-100 Stationary Plasma Thrusters
Configuration MSS-2500-GSO (MSS-767)
Power 2 deployable solar arrays, batteries

The Ekspress-AM 1 is a communications satellite for Russian domestic communication services. The lifetime of the spacecraft has been increased to 12 years. While the spacecraft itself is built by Russian RSCC (Kosmicheskiya Svyaz), the communication payloads is built by NEC.

Ekspress AM 1 failed in May 2010 following a shutdown of its attitude-control system. It was recovered, but inclination increased afterwards. On 10 August 2013 the satellite was finally decomissioned and afterwards sent to a graveyard orbit.

Satellite COSPAR Date LS Launch Vehicle Remarks
EXPRESS AM-1 2004-043A 2004-10-29 TTMTR Proton-K Blok-DM-2M