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USA-223, known before launch as NRO Launch 32 (NRO L-32), is an American reconnaissance satellite which was launched in 2010. It is operated by the United States National Reconnaissance Office. It presently holds the record for being the largest spy satellite ever launched.[4]^{[need quotation to verify]}

USA-223

Mission type	ELINT
Operator	US NRO
COSPAR ID	2010-063A
SATCAT no.	37232
Spacecraft properties
Spacecraft type	Orion
Start of mission
Launch date	21 November 2010, 22:58 (2010-11-21UTC22:58Z) UTC[1]
Rocket	Delta IV Heavy D351
Launch site	Cape Canaveral SLC-37B
Contractor	ULA
Orbital parameters
Reference system	Geocentric
Regime	Geosynchronous
Longitude	100.9° east[2]
Perigee altitude	35,601 kilometers (22,121 mi)
Apogee altitude	35,985 kilometers (22,360 mi)
Inclination	5.09 degrees
Period	23.93 hours
Epoch	14 May 2013, 18:44:29 UTC[3]

Whilst details of its mission are officially classified, amateur observers have identified USA-223 as an Orion satellite; the seventh in the Magnum/Orion series. Orion spacecraft are used for electronic signals intelligence, and carry large antennas to enable them to intercept radio transmissions. These antennas are believed to have a diameter of around 100 metres (330 ft).[5] Bruce A. Carlson, the director of the NRO, described the spacecraft as being the largest satellite ever launched.[6]

USA-223 was launched by United Launch Alliance, aboard a Delta IV Heavy carrier rocket flying from Space Launch Complex 37B at the Cape Canaveral Air Force Station. The launch occurred at 22:58 UTC on 21 November 2010.[1] Following liftoff the rocket flew East towards a geosynchronous orbit. By 23:05 UTC, official updates on the status of the launch had been discontinued.[7]

See also

• USA-202

References

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