EchoStar IV - Misplaced Pages

Communications satellite

EchoStar IV
Spacecraft properties

Mission type	Communications
Operator	EchoStar
COSPAR ID	1998-028A
SATCAT no.	25331
Mission duration	12 years


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
Semi-major axis	42,538.0 kilometers (26,431.9 mi)
Perigee altitude	36,085.2 kilometers (22,422.3 mi)
Apogee altitude	36,250.7 kilometers (22,525.1 mi)
Inclination	7.0 degrees
Period	1,455.3 minutes
Epoch	May 14, 2017


Transponders
Band	32 K_u 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.

Specifications

Launch mass: 3,478 kilograms (7,668 lb)
Power: 2 deployable solar arrays, batteries
Stabilization: 3-axis
Propulsion: LEROS-1C
Longitude: 77° west

References

^ 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 ← 1997 Orbital launches in 1998 1999 →
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).

← 1997 Orbital launches in 1998 1999 →

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).

v t e EchoStar satellites
I II III IV V VI VII VIII IX X XI XII XIII XIV XV XVI XVII XVIII XIX XX XXI XXII XXIII XXIV 105

EchoStar

TV services

Dish Network Sling TV
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Media

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Hardware

Satellites

Wireless and internet brands

Boost Mobile EchoStar Mobile Gen Mobile Hughes Ting Mobile
Defunct	Boost Infinite Republic Wireless

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Commons

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References