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// signals intelligence · 2014

USA 257

USA 257 was launched on September 17, 2014 aboard a Atlas V 401 from Cape Canaveral & Kennedy. Latest status in GCAT: in orbit.

COSPAR 2014-055ANORAD 40208United States

Identity

Name in GCAT
NEMESIS 2
Common name
USA 257
Other names
USA-257,CLIO
International designator
2014-055A
NORAD catalog number
40208
GCAT identifier
S40208
UN registration
ST/SG/SER.E/745

Mission

Mission type
Signals intelligence
Use
Defense
Program
NEMESIS
Owner
NRO
Country
United States
Builder
Lockheed Martin Commercial Space Systems/Sunnyvale
Platform (bus)
A2100

Launch

Date
September 17, 2014 · 00:10 UTC
Launch record
2014-055Success
Spaceport
Cape Canaveral & Kennedy · pad SLC41

Orbit and fate

Orbit class (GCAT)
GEO/S
Perigee
35,739 km
Apogee
35,835 km
Inclination
0.04°
Status
In orbit
Last known active
June 2021

Size

Mass
3,400 kg
Dry mass
1,500 kg
Length
5.0 m
Diameter
2.20 m
Span
26.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q18220634 (CC0).