An artist's concept of C/NOFS
|Operator||STP / AFRL / DMSG|
|Launch mass||384 kilograms (847 lb)|
|Start of mission|
|Launch date||16 April 2008, 17:02:48UTC|
Bucholz Runway 6/24
|End of mission|
|Decay date||28 November 2015|
|Perigee altitude||405 kilometers (252 mi)|
|Apogee altitude||853 kilometers (530 mi)|
|Epoch||16 April 2008, 04:00:00 UTC |
C/NOFS, or Communications/Navigation Outage Forecasting System was an American satellite developed by the Air Force Research Laboratory Space Vehicles Directorate to investigate and forecast scintillations in the Earth's ionosphere. It was launched by an Orbital Sciences Corporation Pegasus-XL rocket at 17:01 GMT on 16 April 2008. It decayed on 28 November 2015.
The satellite, which was operated by the USAF STP, allowed the US military to predict the effects of ionospheric activity on signals from communication and navigation satellites, outages of which could potentially cause problems in battlefield situations.
C/NOFS had a three-axis stabilisation system, and was equipped with seven sensors. It was placed into a low Earth orbit with orbital inclination of 13°, a perigee of 400 km and an apogee of 850 km. It carried the CINDI experiment for NASA. Launch was originally scheduled for 2003, but was delayed due to a number of issues.
The spacecraft payload consists of the following instruments:
C/NOFS science data is now available online for general use. VEFI and PLP data are available through NASA Goddard's Coordinated Data Analysis Web (CDAWeb). CINDI data are available through the William B. Hanson Center for Space Science at The University of Texas at Dallas.
On 2008-05-28 the USAF Space Development and Test Wing announced its launch and early orbit portion of the spacecraft's operations had been completed successfully. On 2008-06-09 the manufacturer of the separation systems used to deploy the C/NOFS solar panels, payload antennas and magnetometer boom indicated they had all functioned correctly.
On September 9, 2011 SMC announced that it had extended the C/NOFS satellite maintenance contract from 1 October 2011 to 31 March 2012 to Orbital Sciences corp. for the continued On-Orbit Support of the C/NOFS mission.
As of 2013-06-03 the C/NOFS satellite has been placed in safe mode, with all scientific instruments turned off, due to budgetary restrictions.
As of 2013-10-21 the C/NOFS satellite is out of safe mode and operating nominally.
On 28 November 2015 C/NOFS burned in Earth's atmosphere during a planned reentry.