2.3.1 spase://CNES/NumericalData/CDPP-AMDA/Cassini/Ephemeris/cass-ephem-sls3 wl sls3 Saturnian Longitude System 3 (western) 2017-10-12T11:24:00 Cassini western longitude around Saturn based on Cassini SKR measurements. SLS3 longitude system is described here: Kurth et al. "An Update to a Saturnian Longitude System Based on Kilometric Radio Emissions", 2007, JGR. It is calculated by Joseph Groene tool (University of Iowa) spase://CNES/Person/Joseph.Groene DataProducer Joseph Groene tool http://www-pw.physics.uiowa.edu/~jbg/cas.html cass-orb-spec PartOf orbit saturn : special spase://SMWG/Repository/CNES/CDPP-AMDA Online Open AMDA amda.cdpp.eu NetCDF University of Iowa spase://CNES/Instrument/CDPP-AMDA/Cassini/Ephemeris Ephemeris 2004-01-01T00:10:00Z 2007-08-11T00:00:00Z PT300S lon_sls3 cass_wl_sls3 Cassini Longitude around Saturn (relative to the SLS3 period) pos.bodyrc.long;instr.obsty deg TimeSeries Positional