Echostar IV

Overview

Destination: Geostationary Orbit
Mission: Communications

Geostationary Orbit 81/23 (81L) Baikonur Cosmodrome, Republic of Kazakhstan

Echsostar 4 should have replaced EchoStar 1 at 119°W which would then have moved to 148°W (where only 24 transponders have been granted to EchoStar). After launch, the satellite has experienced anomalies in connection with solar panel deployment (two of five panels on one solar array have not unfolded). Therfore several transponders are not operational, so EchoStar 4 did not replace EchoStar 1. In Jul 1999 further anomalies with thermal control and fuel systems were reported. Only 16 transponders are reported to be operational. EchoStar has filled for constructive total loss of the satellite, which was insured for $220 million. In Jun 1999 the FCC approved a move request to 110°W to allow EchoStar to start broadcasting from there. Earlier the FCC granted to transfer of the 110°W licence of MCI to EchoStar. During May 1999, EchoStar IV experienced anomalies affecting transponders, heating systems and the fuel system. In July 1999, additional fuel system anomalies were confirmed. By 31 October 2000, a total of 26 transponders of 44 aboard failed and by 30 June 2002, 38 transponders had failed. Only six transponders were available for use at this time. Currently the satellite functions as an in-orbit spare. In September 2004, the jammed solar array deployed spontaneously.

Proton-K/DM-2M

Family: Proton / UR-505
Configuration: DM-2M

The Proton-K was a Russian, previously Soviet, carrier rocket derived from the earlier Proton. It was built by Khrunichev, and launched from sites 81 and 200 at the Baikonur Cosmodrome in Kazakhstan.

Specifications
  • Stages
    4
  • Length
    59.0 m
  • Diameter
    4.15 m
  • Fairing Diameter
    4.15 m
  • Launch Mass
    712 T
  • Thrust
    8847 kN
Family
  • Name
    Proton-K/DM-2M
  • Family
    Proton / UR-505
  • Variant
    DM-2M
  • Alias
  • Full Name
    Proton-K/DM-2M
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
  • Geostationary Transfer Orbit
  • Direct Geostationary
    1880 kg
  • Sun-Synchronous Capacity

Khrunichev State Research and Production Space Center

Circle Image
Director: Andrey Vladimirovich Kalinovskiy Founded: 1916 Successes: 361 Failures: 30 Pending: 8

Agency Type: Government

Khrunichev State Research and Production Space Center is a Moscow-based producer of spacecraft and space-launch systems, including the Proton and Rokot rockets and is currently developing the Angara rocket family. The Proton launch vehicle launches from Baikonur and Rokot launches from Baikonur and Plesetsk. Angara will launch from Plesetsk and Vostochny.

INFO WIKI

Baikonur Cosmodrome, Republic of Kazakhstan

81/23 (81L)


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