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All launches

United Launch Alliance

USSF-87

Success

Vulcan VC4S

T-minus to liftoff

HOURS

MINUTES

SECONDS

Thursday February 12 2026, 09:22:00 UTC

StatusSuccess

Scrub riskHIGH

Go8%

VehicleVulcan VC4S

OrbitGeostationary Orbit

PadSpace Launch Complex 41

Launch CodexDossier

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General trajectory

Space Launch Complex 41

Cape Canaveral SFS, FL, USA

Launching

East

93° · E

28.583, -80.583

Orbital elements (TLE)

2 element sets

Transfer orbit

Apogee37,006 km

Perigee490 km

Period660.6 min

Inclination15.50°

Launch heading 93° · E from USSF-87 PO.

Parking orbitUSSF-87 PO› conelow

1 70020U 26029A 26043.40133102 .00000000 00000-0 00000-0 0 9997

2 70020 28.5000 110.2356 0033160 314.0000 171.0000 15.27476000 06

Transfer orbitUSSF-87 GTOlow

1 70020U 26029A 26043.41313657 .00000000 00000-0 00000-0 0 9993

2 70020 15.5000 104.0356 7266504 179.0000 002.0000 02.17977200 05

Pre-launch TLEs from Dillon's Space Page. Estimated before flight — the real orbit is confirmed post-launch.

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Mission

USSF-87 will launch two identical Geosynchronous Space Situational Awareness Program (GSSAP) satellites GSSAP-7 and GSSAP-8 directly to a near-geosynchronous orbit approximately 36,000 km above the equator. Data from the GSSAP will uniquely contribute to timely and accurate orbital predictions, further enabling space flight safety including satellite collision avoidance.

Q's read

Weather & scrubHIGH risk

Weather Go8%LL2 Go95%Wind2 m/sGusts4 m/sCloud32%Temp26°C

Limiting rule: No flight through a thick (>4500 ft) cloud layer extending across the freezing level.

max-top 6377 m, mean 4858 m, 86% cover, freezing 4523 m · max cloud-top 6377 m above freezing 4523 m (86% cover in 10 nmi) · no GLM flashes within 25 nmi / 30 min, likely cirrus / stratiform ice rather than cumulus

Quick facts

VehicleVulcan VC4S

OrbitGeostationary Orbit

PadSpace Launch Complex 41

SiteCape Canaveral SFS, FL, USA

WindowThursday February 12 2026, 08:30:00 UTC→Thursday February 12 2026, 10:30:00 UTC

Vehicle

FamilyVulcan