urn:nasa:pds:cassini-mimi-chems-cal:browse-cspgm:cspgm_hp_2012120_2012140 1.0 1.20.0.0 Product_Browse Vandegriff, Jon 2024 CHEMS MIMI This file contains Cassini Magnetospheric Imaging Instrument (MIMI) Charge Energy Mass Spectrometer (CHEMS) 20-day energy per charge spectrogram for H+, (water group ions such as H2O+, OH+, and O+) during the Extended-Extended Mission from 2012-04-29T00:00:00.000Z to 2012-05-19T00:00:00.000Z. 2024-05-13 1.0 This product, CSPGM0_HP_2012120_2012140_00.PDF, was originally released as part of the PDS3 CO-S-MIMI-4-CHEMS-CALIB-V1.0 data set. The metadata have been migrated to PDS4. The data themselves are unchanged. 2012-04-29T00:00:00.000Z 2012-05-19T00:00:00.000Z Science Calibrated Cassini MIMI CHEMS Energy per Charge H+ Browse Heliosphere Magnetosphere Particles Ions Energetic Cassini-Huygens Mission urn:nasa:pds:context:investigation:mission.cassini-huygens browse_to_investigation Cassini Orbiter Host urn:nasa:pds:context:instrument_host:spacecraft.co is_instrument_host Magnetospheric Imaging Instrument for Cassini Orbiter Instrument urn:nasa:pds:context:instrument:mimi.co is_instrument MIMI Charge/Energy Mass Spectrometer Instrument urn:nasa:pds:context:instrument:mimi-chems.co is_instrument Saturn Planet urn:nasa:pds:context:target:planet.saturn browse_to_target Enceladus Satellite urn:nasa:pds:context:target:satellite.saturn.enceladus browse_to_target Extended-Extended Mission 1714351902.000 1716079913.000 1 165 166 3 220 Ions Pulse Height Analysis Proton urn:nasa:pds:cassini-mimi-chems-cal:data-cpavg:cphaflx_t1_hp_2012120_2012140_0::1.0 browse_to_data urn:nasa:pds:cassini-mimi-chems-cal:data-cpavg:cphaflx_t2_hp_2012120_2012140_0::1.0 browse_to_data urn:nasa:pds:cassini-mimi-chems-cal:data-cpavg:cphaflx_t3_hp_2012120_2012140_0::1.0 browse_to_data urn:nasa:pds:cassini-mimi-chems-cal:data-cpavg:cphaflx_ta_hp_2012120_2012140_0::1.0 browse_to_data CO-S-MIMI-4-CHEMS-CALIB-V1.0:CSPGM0_HP_2012120_2012140_00:CSPGM0_HP_2012120_2012140_00.PDF data_to_calibrated_source_product 10.17189/1519606 PDS Planetary Plasma Interactions Node This is the first version converted to PDS4. The DOI references the source PDS3 data set. CSPGM0_HP_2012120_2012140_00.PDF 2013-01-24T16:45:12 1275871 213ed4f69eea0c78100ff466a8d90601 CSPGM0_HP_2012120_2012140_00 0 PDF PDF file containing CHEMS 20-day energy per charge Spectrograms for H+. Pixels are 15 percent in energy per charge by 60 minutes and are based on CHEMS PHA data. The bottom axis is time covering a 20 day interval. Also given is the position of the Cassini spacecraft in SZS (Saturn equatorial) coordinates. The coordinates are radial distance from the center of Saturn in Saturn radii, latitude in degrees, and local time in decimal hours (sunward = 12.0, anti-sunward = 0.0). The y-axis is energy per charge (keV/e). The color represents the differential intensity for this species, and the units are particles per (cm^2 sec sr keV/e). No background has been subtracted. There are 4 horizontal panels in the plot. The top panel contains the average intensity from all three CHEMS telescopes combined (full 4 degrees x 159 degrees FOV). Each panel below is for an individual telescope (4 degrees x 53 degrees FOV) (1, 2, and 3 respectively). The intensities are derived from triple coincidence events (TOF + SSD energy) at high energies and from double coincidence events (TOF only) plus (relatively rare) triple coincidence events at low energies. The energy ranges for the 32 E/Q steps are defined in the CHEMS energy per charge average file LBL files which were used to create these products. For H+ the transition occurs at 25.6 keV/e. Because of the large drop in number of PHA events (sometimes to zero or one event in one hour) at the transition from doubles + triples to triples only, an apparent discontinuity is sometimes observed in the intensity at the transition energy. When statistics are abundant the transition should be smooth. Background is expected to be lower for the triples only events.