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USA-181 P/L 2

In orbit

USA-181 P/L 2 (NORAD 28541, COSPAR 2005-004C) is a US satellite in orbit, launched on 3 Feb 2005 on the INTRUDER 7 mission. It is catalogued as INTRUDER 6. It is operated by NRO / USN as part of the NOSS3 programme. The spacecraft was built by LMSSD on the NOSS-3 bus, with a mass of 1,000 kg. No current orbital elements are published for it, so it is not shown on the live map or in pass predictions. Catalogue record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

2005
launched
21
years on orbit
1,000
kg mass

Lifecycle

Launched3 Feb 2005 · on the INTRUDER 7 mission
StatusOn orbit (not live-tracked)

Specifications

NORAD ID28541
COSPAR2005-004C
TypeSatellite
OperatorNRO / USN
Country / StateUS
ManufacturerLMSSD
BusNOSS-3
Mass1,000 kg
ProgrammeNOSS3
CategorySIG*
OrbitLEO (LEO/I)
Altitude1,011 × 1,209 km
Inclination63.4°

Frequently asked questions

What is USA-181 P/L 2?

USA-181 P/L 2 is a satellite launched in 2005 that is still in orbit. No current orbital elements are published for it, so it is not shown on the live map or in pass predictions.

Who operates and built USA-181 P/L 2?

USA-181 P/L 2 is operated by NRO / USN and built by LMSSD (US).

Launched together

INTRUDER 5NORAD 28537
Catalogue record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-10-21.