National Aeronautics and Space Administration

Living With A Star

Targeted Research and Technology

Contribution of Ionospheric Occultation Experiment (IOX) Observations to the LWS Data Environment

ROSES ID: NRA-03-OSS-01      Selection Year: 2004      

Program Element: Independent Investigation: LWS

Principal Investigator: Paul Straus

Affiliation(s): Aerospace Corporation

Project Member(s):
Sauve, Vera Sue Authorizing Official The Aerospace Corporation


The Ionospheric Occultation Experiment (IOX) is a GPS occultation sensor that is currently in orbit on a US Air Force Space Test Program (STP) satellite. IOX is the only currently operational GPS occultation sensor with an ionospheric mission focus and has been collecting a substantial database of GPS occultation data since late-2001. The IOX measurements of the GPS L1 and L2 signals can be used to derived precise line-of-sight total electron content (TEC) values, electron density profiles with good vertical resolution, and L-band scintillation. These types of measurements are key to fulfilling many LWS objectives. The IOX data is particularly useful for scintillation (including mid-latitude) studies and assimilative model evaluation and development. We propose to provide the science community with on-line access to IOX data together with a simple search/browse capability and ancillary information about IOX mission parameters useful for research.


Performance YearReferenceInvestigation TypeActions
1Paul Straus / Aerospace Corporation-Contribution of Ionosphe...
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1Straus, P. R.; (2007), Ionospheric climatology derived fr...
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Performance YearReferenceActions
1Straus, P. R.; Anderson, P. C.; (2004), GPS Occultatio...
1Chang, B.; Straus, P. R.; (2005), Ionospheric Occultati...
1Straus, P.R.; (2006), Solar-Maximum Ionospheric Climatolog...
1Straus, P. R.; Bishop, R.; Crowley, G.; (2007), GPS O...

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