2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Spacecraft
  3. EchoStar IV
// communications · 1998

EchoStar IV

Retired geostationary communications satellite. EchoStar IV was launched on May 7, 1998 aboard a Proton-K/DM-2M from Baikonur. Latest status in GCAT: in orbit.

COSPAR 1998-028ANORAD 25331United States

Identity

Name in GCAT
Echostar IV
Common name
EchoStar IV
Payload designation
Echostar 4
International designator
1998-028A
NORAD catalog number
25331
GCAT identifier
S25331
UN registration
ST/SG/SER.E/344

Mission

Mission type
Communications
Use
Commercial
Program
Echostar
Owner
Echostar
Country
United States
Builder
Lockheed Martin Commercial Space Systems/Sunnyvale
Platform (bus)
A2100AX

Launch

Date
May 7, 1998 · 23:45 UTC
Launch record
1998-028Success
Spaceport
Baikonur · pad LC81/23

Orbit and fate

Orbit class (GCAT)
GEO/S
Perigee
35,775 km
Apogee
35,795 km
Inclination
0.03°
Status
In orbit
Last known active
August 2006
End of operations
Jul 16, 2011

Size

Mass
3,470 kg
Dry mass
1,580 kg
Length
4.5 m
Diameter
1.80 m
Span
21.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q18327696 (CC0).