// technology · 2015

OTV-4

Uncrewed spaceflight mission; second flight of the second Boeing X-37B. OTV-4 was launched on May 20, 2015 aboard a Atlas V 501 from Cape Canaveral & Kennedy. Latest status in GCAT: landed (May 7, 2017).

COSPAR 2015-025ANORAD 40651United States

Identity

Name in GCAT: X-37B OTV-4
Common name: OTV-4
Payload designation: X-37B No. 2 F2
Other names: USA 261,AFSPC-5
International designator: 2015-025A
NORAD catalog number: 40651
GCAT identifier: S40651
UN registration: ST/SG/SER.E/796

Mission

Mission type: Technology
Use: Defense
Program: X37
Owner: AF RCO
Country: United States
Builder: Boeing Space Systems (HB)
Platform (bus): X-37

Launch

Date: May 20, 2015 · 15:05 UTC
Launch record: 2015-025Success
Rocket: Atlas V 501
Spaceport: Cape Canaveral & Kennedy · pad SLC41

Orbit and fate

Orbit class (GCAT): LLEO/I
Perigee: 309 km
Apogee: 322 km
Inclination: 38.02°
Status: Landed
Status date: May 7, 2017
Last known active: May 7, 2017
End of operations: May 7, 2017

Size

Mass: 5,000 kg
Dry mass: 5,000 kg
Length: 8.8 m
Diameter: 2.90 m
Span: 8.8 m

Launched together

ParkinsonSATTechnology · USNA BRICSat-PTechnology · USNA GEARRS-2Communications · NearSpaceLaunch LightSail-1Technology · PlanSoc

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q20803950 (CC0).