EchoStar IV
Communications satellite
Mission type | Communications |
---|---|
Operator | EchoStar |
COSPAR ID | 1998-028A |
SATCAT no. | 25331 |
Mission duration | 12 years |
Spacecraft properties | |
Bus | A2100AX |
Manufacturer | Lockheed Martin |
Launch mass | 3,478 kg (7,668 lb) |
Dry mass | 1,400 kg (3,100 lb) |
Power | 10 kW |
Start of mission | |
Launch date | May 7, 1998, 23:45 (1998-05-07UTC23:45Z) UTC |
Rocket | Proton-K/Blok-DM3 |
Launch site | Baikonur 81/23 |
End of mission | |
Deactivated | July 2011 (July 2011) |
Orbital parameters | |
Reference system | Geocentric |
Regime | Geostationary |
Longitude | 77° west[1] |
Semi-major axis | 42,538.0 kilometers (26,431.9 mi)[1] |
Perigee altitude | 36,085.2 kilometers (22,422.3 mi)[1] |
Apogee altitude | 36,250.7 kilometers (22,525.1 mi)[1] |
Inclination | 7.0 degrees[1] |
Period | 1,455.3 minutes[1] |
Epoch | May 14, 2017[1] |
Transponders | |
Band | 32 Ku band |
Frequency | Uplink: 17.3 - 17.8 GHz Downlink: 12.2 - 12.7 GHz |
Bandwidth | 24 MHz |
Coverage area | United States, Mexico and Puerto Rico |
EIRP | 53 dBW |
EchoStar IV is a communications satellite operated by EchoStar. Launched in 1998 it was operated in geostationary orbit at a longitude of 77 degrees west for 12 years.
Satellite
The launch of EchoStar IV made use of a Proton rocket flying from Site 81 at the Baikonur Cosmodrome, Kazakhstan. The launch took place at 23:45 UTC on May 7, 1998, with the spacecraft entering a geosynchronous transfer orbit. EchoStar IV carried 32 Ku band transponders to provide direct voice and video communications to small dishes in North America after parking over 119° W or 148° W longitude.[2]
Specifications
- Launch mass: 3,478 kilograms (7,668 lb)
- Power: 2 deployable solar arrays, batteries
- Stabilization: 3-axis
- Propulsion: LEROS-1C
- Longitude: 77° west
See also
References
- ^ a b c d e f g N2yo. "ECHOSTAR 4". Retrieved November 28, 2017.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ "EchoStar 4". SatBeams. Retrieved September 28, 2017.
- v
- t
- e
- Lunar Prospector
- Skynet 4D
- Ofek-4
- STS-89
- Soyuz TM-27
- USA-137
- Brasilsat B3
- Inmarsat-3 F5
- Orbcomm FM3
- Orbcomm FM4
- GFO
- Ad Astra
- Globalstar 1
- Globalstar 2
- Globalstar 3
- Globalstar 4
- Kosmos 2349
- Iridium 50
- Iridium 52
- Iridium 53
- Iridium 54
- Iridium 56
- Kakehashi
- SNOE
- Teledesic 1
- Hot Bird 4
- Intelsat 806
- Progress M-38 (VDU-2)
- USA-138
- SPOT 4
- Iridium 51
- Iridium 61
- Iridium 55
- Iridium 57
- Iridium 58
- Iridium 59
- Iridium 60
- TRACE
- Iridium 62
- Iridium 63
- Iridium 64
- Iridium 65
- Iridium 66
- Iridium 67
- Iridium 68
- STS-90
- Globalstar 6
- Globalstar 8
- Globalstar 14
- Globalstar 15
- Nilesat 101
- BSat-1B
- Kosmos 2350
- Iridium 69
- Iridium 71
- Kosmos 2351
- EchoStar IV
- USA-139
- NOAA-15
- Progress M-39
- Iridium 70
- Iridium 72
- Iridium 73
- Iridium 74
- Iridium 75
- Zhongwei 1
- STS-91
- Thor 3
- Kosmos 2352
- Kosmos 2353
- Kosmos 2354
- Kosmos 2355
- Kosmos 2356
- Kosmos 2357
- Intelsat 805
- Kosmos 2358
- Kosmos 2359
- Molniya 3-49
- Nozomi
- Shtil-1
- Tubsat-N
- Tubsat-N1
- Resurs-O1 #4
- Fasat-Bravo
- TMSAT
- Gurwin Techsat 1B
- WESTPAC
- SAFIR-2
- Sinosat-1
- Kosmos 2360
- Orbcomm FM13
- Orbcomm FM14
- Orbcomm FM15
- Orbcomm FM16
- Orbcomm FM17
- Orbcomm FM18
- Orbcomm FM19
- Orbcomm FM20
- Mercury 3
- Soyuz TM-28
- Iridium 3
- Iridium 76
- ST-1
- Galaxy 10
- Astra 2A
- Kwangmyŏngsŏng-1
- Iridium 79
- Iridium 80
- Iridium 81
- Iridium 82
- Globalstar 5
- Globalstar 7
- Globalstar 9
- Globalstar 10
- Globalstar 11
- Globalstar 12
- Globalstar 13
- Globalstar 16
- Globalstar 17
- Globalstar 18
- Globalstar 20
- Globalstar 21
- PAS-7
- Orbcomm FM21
- Orbcomm FM22
- Orbcomm FM23
- Orbcomm FM24
- Orbcomm FM25
- Orbcomm FM26
- Orbcomm FM27
- Orbcomm FM28
- Molniya-1T #99
- STEX (USA-141)
- Eutelsat W2
- Sirius 3
- Hot Bird 5
- USA-140
- Maqsat 3
- Deep Space 1
- SEDSAT-1
- Progress M-40 (Sputnik 41)
- AfriStar
- GE-5
- STS-95 (SPARTAN-201, PANSAT)
- PAS-8
- Iridium 2
- Iridium 83
- Iridium 84
- Iridium 85
- Iridium 86
- Zarya / ISS
- Bonum 1
- STS-88 (Unity, PMA-1
- PMA-2
- SAC-A
- MightySat-1
- Satmex 5
- SWAS
- Nadezhda 5
- Astrid 2
- Mars Climate Orbiter
- Iridium 11
- Iridium 20
- PAS-6B
- Kosmos 2361
- Kosmos 2362
- Kosmos 2363
- Kosmos 2364
Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in underline. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets).
This article about one or more spacecraft of the United States is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e