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. REX II
// space science · 1996

REX II

U.S. military ionospheric research satellite. REX II was launched on March 9, 1996 aboard a Pegasus XL from Vandenberg. Latest status in GCAT: in orbit.

COSPAR 1996-014ANORAD 23814United States

Identity

Name in GCAT
REX II
Other names
STP P94-2:PN
International designator
1996-014A
NORAD catalog number
23814
GCAT identifier
S23814
UN registration
ST/SG/SER.E/310

Mission

Mission type
Space science
Use
Civil government
Program
STP1
Country
United States
Builder
CTA Space Systems Inc
Platform (bus)
Ministar

Launch

Date
March 9, 1996 · 01:33 UTC
Launch record
1996-014Success
Spaceport
Vandenberg · pad RW30/12

Orbit and fate

Orbit class (GCAT)
LEO/P
Perigee
803 km
Apogee
832 km
Inclination
89.94°
Status
In orbit
Last known active
January 2003
End of operations
July 1999

Size

Mass
110 kg
Dry mass
110 kg
Length
0.6 m
Diameter
0.80 m
Span
6.6 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q111498946 (CC0).