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USA-54
American navigation satellite used for GPS. USA-54 was launched on March 26, 1990 aboard a Delta 6925 from Cape Canaveral & Kennedy. Latest status in GCAT: in orbit.
COSPAR 1990-025ANORAD 20533United States
Identity
- Name in GCAT
- GPS II-7
- Common name
- USA-54
- Payload designation
- GPS SVN 20
- Other names
- USA 54:U,Navstar 19
- International designator
- 1990-025A
- NORAD catalog number
- 20533
- GCAT identifier
- S20533
- UN registration
- ST/SG/SER.E/250
Mission
- Mission type
- Navigation
- Use
- Defense
- Program
- GPS II
- Owner
- USAF SSD
- Country
- United States
- Builder
- Rockwell/Seal Beach
- Platform (bus)
- GPS II
Launch
- Date
- March 26, 1990 · 02:45 UTC
- Launch record
- 1990-025Success
- Rocket
- Delta 6925
- Spaceport
- Cape Canaveral & Kennedy · pad LC17A
Orbit and fate
- Orbit class (GCAT)
- MEO
- Perigee
- 20,089 km
- Apogee
- 20,269 km
- Inclination
- 55.07°
- Status
- In orbit
- Last known active
- May 21, 1996
- End of operations
- May 21, 1996
Size
- Mass
- 776 kg
- Dry mass
- 776 kg
- Total mass with attached objects
- 1,667 kg
- Length
- 2.4 m
- Diameter
- 1.80 m
- Span
- 5.3 m
Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q7865699 (CC0).