urn:nasa:pds:context:instrument:mrffr.ch1-orb 1.3 1.25.0.0 Product_Context MINI-RF FORERUNNER 2025-12-24 1.3 Updated CTLI instrument types. 2025-12-24 1.2 Updated schema version. Removed instrument_to_investigation references. Updated CTLI instrument types. 2025-01-02 1.1 Updated schema version. LIDVID references updated to be LID references. Adding missing "investigation" references. 2016-10-01 1.0 extracted metadata from PDS3 catalog and modified to comply with PDS4 Information Model urn:nasa:pds:context:instrument_host:spacecraft.ch1-orb instrument_to_instrument_host McKerracher, P.L., J.R. Jensen, H.B. Sequeira, R.K. Raney, R.C. Schulze, D.B.J. Bussey, B.J. Butler, C.D. Neish, M. Palsetia, G.W. Patterson, P.D. Spudis, B.J. Thomson, and F.S. Turner, Mini-RF calibration, a unique approach to on-orbit synthetic aperture radar system calibration, 41st Lunar and Planetary Science Conference, Abstract #2352, The Woodlands, Texas, March 2010. reference.MCKERRACHERETAL2010 Mini-Rf Forerunner for CH1-ORB Radar Imager not applicable not applicable The Miniature Synthetic Aperture Radar (Mini-SAR) is a small imaging radar designed primarily to map the scattering properties of the lunar poles in order to ascertain if water ice is present and if so, to determine its location and distribution. Concentrated ice exhibits an increase in radar reflectivity and enhancement of circular polarization ratio along the backscatter direction which can be measured by Mini-SAR, allowing construction of a map of the location of ice deposits. Mini-SAR will also be used to produce radar maps of the lunar surface near the poles.