urn:nasa:pds:cassini-mimi-lemms-cal:data-accumulation-rates-avg-1hr:laccavg_1hr_2012201 1.0 1.20.0.0 Product_Observational Vandegriff, Jon 2024 LEMMS MIMI This file contains Cassini Magnetospheric Imaging Instrument (MIMI) Low Energy Magnetospheric Measurement System (LEMMS) 1 hour accumulation rate averages data. The data are averaged by fixed 1 hour intervals and then averaging any data points that fall in the intervals. 2024-05-15 1.0 This product, LACCAVG0_1HR_2012201_02.CSV, was originally released as part of the PDS3 CO-S-MIMI-4-LEMMS-CALIB-V1.0 data set. The metadata have been migrated to PDS4. The data themselves are unchanged. 2012-07-19T00:00:00.000Z 2012-07-20T00:00:00.000Z Science Calibrated Cassini MIMI LEMMS Calibrated 1 Hour Accumulation Rate Averages Data Heliosphere Magnetosphere Particles Ions Energetic Heliosphere Magnetosphere Particles Electrons Energetic Cassini-Huygens Mission urn:nasa:pds:context:investigation:mission.cassini-huygens data_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 Low Energy Magnetospheric Measurement Sensor for Cassini Orbiter Instrument urn:nasa:pds:context:instrument:mimi-lemms.co is_instrument Saturn Planet urn:nasa:pds:context:target:planet.saturn data_to_target 1/1721350347:125 1/1721436748:9 1 169 169 27 160 Ions Energy Flux Proton 15 3000 Electrons Energy Flux urn:nasa:pds:cassini-mimi-lemms-cal:data-accumulation-rates-full:laccfull_2012201::1.0 data_to_associate urn:nasa:pds:cassini-mimi:data-ancillary::1.0 data_to_ancillary_data urn:nasa:pds:cassini-mimi:data-ancillary:mimi_datagaps_2012::1.0 data_to_ancillary_data urn:nasa:pds:cassini-mimi:data-ancillary:mimi_hskp_datagaps_2012::1.0 data_to_ancillary_data urn:nasa:pds:cassini-mimi:data-ancillary:mimi_spin_2012::1.0 data_to_ancillary_data urn:nasa:pds:cassini-mimi:spice-mk:mimi data_to_spice_kernel CO-S-MIMI-4-LEMMS-CALIB-V1.0:LACCAVG0_1HR_2012201:LACCAVG0_1HR_2012201_02.CSV data_to_calibrated_source_product 10.17189/1519608 PDS Planetary Plasma Interactions Node This is the first version converted to PDS4. The DOI references the source PDS3 data set. LACCAVG0_1HR_2012201_02.CSV 2013-07-11T06:35:25 23660 ea5ba9d1a74ad44eabde2910ef7ad543

Cassini MIMI LEMMS Calibrated 1 Hour Accumulation Rate Averages Header 0 1278 PDS DSV 1 Column names for the fields.

Cassini MIMI LEMMS Calibrated 1 Hour Accumulation Rate Averages Data for 2012-07-19 1278 PDS DSV 1 If an interval contains no data, it is still listed in the file, but all data intensity values will be fill. The fill value for data in this file is -1.0E38. These data are background subtracted, and thus occasionally there will be negative values when the count rate falls below the background level. Also, the uncertainties are based on the counting statistics, and thus because of the background subtraction, the uncertainties can be larger than the data value. The background levels change over time and each channel's background level as a function of time in counts/sec is listed in the MIMI calibration file (described in the MIMI Data User Guide, the SIS for this dataset, and also in SIS for the uncalibrated MIMI data). There are four types of channels included in these averages. The channels A0 through A8 are measured by the low energy end of LEMMS (the Low Energy Telescope, or LET), and for protons these channels have an energy range of 27 to 4000 keV. The P1 through P9 channels capture protons as measured by the LEMMS High Energy Telescope (HET) and have an energy range of 1 to 60 MeV. Channels C0 through C7 measure electrons, and have an energy of 20 to 900 keV. The E0 through E4 channels are also electrons covering the 150 to 3000 keV range. The MIMI instrument paper describes these channels, as does the MIMI Data User Guide. Just before the data columns are three columns giving the position of the Cassini spacecraft relavtive to Saturn in the SZS frame. The position is given for the middle of the time interval. The units are Saturn radii (60268 km) and the SZS frame is defined as: +Z is Saturn spin axis, +Y is +Z cross the Saturn-Sun line, and +X is +Y cross +Z. 23 Carriage-Return Line-Feed Comma 17 4 Purpose 1 ASCII_String 3 indicates that this row contains science data UTC 2 ASCII_Date_Time_DOY 21 midpoint time of the averaging interval as a UTC string in ISO 8601 format SCLOCK 3 ASCII_String 16 midpoint time of the averaging interval as a spacecraft clock string; SCLOCK values are recorded as P/NNNNNNNNNN.FFF where P is the partition number, NNNNNNNNNN is roughly the number of seconds since the start of the partition, and FFF is the number of ticks. Each tick is roughly 1/256 of a second. Start_Ephemeris_s 4 ASCII_Real 22 Second start time of the averaging interval in ephemeris time (TDB seconds past the J2000 epoch) End_Ephemeris_s 5 ASCII_Real 22 Second end time of the averaging interval in ephemeris time (TDB seconds past the J2000 epoch) Spin_Counter 6 ASCII_Integer 3 unused field in this file Sector 7 ASCII_Integer 3 unused field in this file Start_Sector_Sclock_major 8 ASCII_Integer 3 unused field in this file Subsector 9 ASCII_Integer 3 unused field in this file Microsectors_Covered 10 ASCII_Integer 3 unused field in this file Spin_Period_s 11 ASCII_Integer 3 unused field in this file Staring 12 ASCII_Integer 3 unused field in this file Sensor_Bitrate 13 ASCII_Integer 3 unused field in this file SZS_X 14 ASCII_Real 13 Saturn Radii SZS x component of the position of Cassini relative to Saturn SZS_Y 15 ASCII_Real 13 Saturn Radii SZS y component of the position of Cassini relative to Saturn SZS_Z 16 ASCII_Real 13 Saturn Radii SZS z component of the position of Cassini relative to Saturn MinSunAngle 17 ASCII_Real 8 Degree minimum angle between the LEMMS LET boresight direction and the SC-to-Sun line during the averaging interval; this helps users determine the possibility of light contamination; the most conservative estimate is 60 degrees, but sometimes much smaller angles such as 20 degrees are still ok 9 2 0 A0 - A8 Intensity 1 ASCII_Real 13 counts/sec/ster/cm^2/keV intensities for channel A0 - A8; energy range for these channels: A0: 27 - 35 keV A1: 35 - 56 keV A2: 56 - 106 keV A3: 106 - 255 keV A4: 255 - 506 keV A5: 506 - 805 keV A6: 805 - 1600 keV A7: 1615 - 4000 keV A8: 1270 - 3930 keV -1.0E38 A0_UNCERT-A8_UNCERT 2 ASCII_Real 13 counts/sec/ster/cm^2/keV uncertainty value for channel A0 - channel A8; these are statistical uncertainties only -1.0E38 8 2 0 C0 - C7 Intensity 1 ASCII_Real 13 counts/sec/ster/cm^2/keV intensity for channel C0 - C7; energy range for these channels: C0: 18 - 40 keV C1: 27 - 48 keV C2: 41 - 60 keV C3: 56 - 100 keV C4: 92 - 183 keV C5: 175 - 300 keV C6: 510 - 832 keV -1.0E38 C0_UNCERT-C7_UNCERT 2 ASCII_Real 13 counts/sec/ster/cm^2/keV uncertainty value for channel C0 - channel C7; these are statistical uncertainties only -1.0E38 5 2 0 E0 - E4 Intensity 1 ASCII_Real 13 counts/sec/ster/cm^2/keV intensity for channel E0 - E5; energy range for these channels: E0: 110 - 365 keV E1: 220 - 485 keV E2: 340 - 1350 keV E3: 600 - 4950 keV E4: 790 - 4750 keV -1.0E38 E0_UNCERT - E4_UNCERT 2 ASCII_Real 13 counts/sec/ster/cm^2/keV uncertainty value for channel E0 - channel E5; these are statistical uncertainties only -1.0E38 9 2 0 P1 - P9 Intensity 1 ASCII_Real 13 counts/sec/ster/cm^2/keV intensity for channel P1 - P9; energy range for these channels: P1: 1424 - 2278 keV P2: 2280 - 4492 keV P3: 4491 - 5744 keV P4: 13200 - 25400 keV P5: 8311 - 11449 keV P6: 11474 - 13433 keV P7: 12101 - 58902 keV P8: 25185 - 59000 keV P9: 58650 - 158700 keV -1.0E38 P1_UNCERT - P9_UNCERT 2 ASCII_Real 13 counts/sec/ster/cm^2/keV uncertainty value for channel P1 - channel P9; these are statistical uncertainties only -1.0E38