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SatelliteIndex

Launch · COSPAR 2025-077 · 16 Apr 2025

USA 521

Vandenberg Space Force Base (Western Range), California · US34.74°, -120.57°

Payloads

2

Catalogued objects

3

payloads + rocket bodies + debris

Still on orbit

3

Decayed

0

0% of objects

Owners (SATCAT owner codes)

Launch site: Vandenberg Space Force Base (Western Range), CaliforniaVandenberg Space Force Base (Western Range), California

Catalogue

Objects from this launch · 3

Open in explorer →

Payload Payload · 2

NameNORADCOSPARStatusOrbitPerigee / apogeeIncl.DecayedOperator
USA 521USA (classified US military payloads)635962025-077AActiveLEO1,087 / 1,142 km63.39°on orbitNational Reconnaissance Office
USA 522USA (classified US military payloads)635972025-077BActiveLEO1,087 / 1,137 km63.40°on orbitNational Reconnaissance Office

Rocket body Rocket body · 1

NameNORADCOSPARStatusOrbitPerigee / apogeeIncl.DecayedOperator
MINOTAUR 4 R/B635982025-077CInactiveLEO1,088 / 1,137 km63.39°on orbit—

Record

Launch record

COSPAR launch id
2025-077
Launch date(SATCAT, UTC)
16 Apr 2025
Launch site
Vandenberg Space Force Base (Western Range), California
Site code
AFWTR
SatelliteIndex id
lch_01M28X3HYSV4VPHGY182947CJV

Timeline

Events

No events recorded for this launch or its objects.

This launch is derived from catalogued objects sharing the international designator 2025-077; date and site come from SATCAT. See the methodology.