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USA-273
American military satellite. USA-273 was launched on January 21, 2017 aboard a Atlas V 401 from Cape Canaveral & Kennedy. Latest status in GCAT: in orbit.
COSPAR 2017-004ANORAD 41937United States
Identity
- Name in GCAT
- SBIRS GEO-4
- Common name
- USA-273
- Payload designation
- SBIRS GEO SV4
- Other names
- USA 273
- International designator
- 2017-004A
- NORAD catalog number
- 41937
- GCAT identifier
- S41937
- UN registration
- ST/SG/SER.E/803
Mission
- Mission type
- Missile early warning
- Use
- Defense
- Program
- SBIRS GEO
- Owner
- USAF AFSPC
- Country
- United States
- Builder
- Lockheed Martin Space Systems (Sunnyvale)
- Platform (bus)
- A2100
Launch
- Date
- January 21, 2017 · 00:42 UTC
- Launch record
- 2017-004Success
- Rocket
- Atlas V 401
- Spaceport
- Cape Canaveral & Kennedy · pad SLC41
Orbit and fate
- Orbit class (GCAT)
- GEO/I
- Perigee
- 35,685 km
- Apogee
- 35,892 km
- Inclination
- 5.88°
- Status
- In orbit
- Last known active
- Feb 25, 2023
Size
- Mass
- 4,500 kg
- Dry mass
- 2,500 kg
- Length
- 6.0 m
- Diameter
- 2.50 m
- Span
- 25.0 m
Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q28528214 (CC0).