AN/SPQ-11

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AN/SPQ-11
Cobra Judy Phased Array.jpg
Close-up of the front of Cobra Judy radar, 1983.
Country of originUnited States
Introduced1983
No. built1
TypePassive electronically scanned array radar
Frequency2900-3100 MHz (E\F band)
Aft view of the USNS Observation Island showing the location of the Cobra Judy array.

The AN/SPQ-11 Cobra Judy was a PESA radar found on the USNS Observation Island (T-AGM-23) missile range instrumentation ship.

It was used for space tracking, ballistic missiles tracking and other instrumentation. Cobra Judy was the sea component of the COBRA program[clarification needed] for monitoring missile launches and outer space. Cobra Judy was replaced by the Cobra Judy Replacement (CJR) in April 2014.

Replacement[]

The Cobra Judy Platform, USNS Observation Island was taken out of service and stricken from the Naval Vessel Register March 31, 2014.[1] On 31 March 2014, the Cobra Judy Replacement program, aboard USNS Howard O. Lorenzen (T-AGM-25) reached initial operational capability (IOC). According to the Naval Sea Systems Command (NAVSEA), the U.S. Air Force also assumed operational and sustainment responsibilities for the ship.[2]

See also[]

References[]

  1. ^ "USNS OBSERVATION ISLAND (T-AGM 23)". Naval Vessel Register. Retrieved 2 March 2012.
  2. ^ "Cobra Judy Replacement Achieves Initial Operational Capability". Navy.mil. 1 May 2014. No. NNS140501-26. Retrieved 8 May 2014.

External links[]

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