urn:nasa:pds:cassini-mimi-lemms-cal:data-pha-avg-1min:lphaavg_1min_2008004 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 minute pulse height analysis averages data. The data are averaged by fixed 1 minute intervals and then averaging any data points that fall in the intervals. 2024-04-11 1.0 This product, LPHAAVG0_1MIN_2008004_01.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. 2008-01-04T00:00:00.000Z 2008-01-05T00:00:00.000Z Science Calibrated Cassini MIMI LEMMS Calibrated 1 Minute Pulse Height Analysis 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 1/1578098169:189 1/1578184570:89 1 55 55 24.9 781.2 Ions Pulse Height Analysis 19.8 1780.3 Electrons Pulse Height Analysis urn:nasa:pds:cassini-mimi-lemms-cal:data-pha-full:lphafull_2008004::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_2008::1.0 data_to_ancillary_data urn:nasa:pds:cassini-mimi:data-ancillary:mimi_hskp_datagaps_2008::1.0 data_to_ancillary_data urn:nasa:pds:cassini-mimi:data-ancillary:mimi_spin_2008::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:LPHAAVG0_1MIN_2008004:LPHAAVG0_1MIN_2008004_01.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. LPHAAVG0_1MIN_2008004_01.CSV 2013-02-23T01:44:55 5400742 c3ca1f1b31e1f1c05b8d17dbe04782d8

Cassini MIMI LEMMS Calibrated 1 Minute Pulse Height Analysis Averages Header 0 6064 PDS DSV 1 Column names for the fields.

Cassini MIMI LEMMS Calibrated 1 Minute Pulse Height Analysis Averages Data for 2008-01-04 6064 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 three types of channels included in these averages: the A channels, the E channels and the F1 channels. The A channels measure ions, mostly protons. The E and F1 channels measure electrons. Note that a subset of the available PHA channels are typically used for science analysis, and only these channels are plotted here. The dataset catalog file details the reasons for this. Essentially, the efficiencies are unknown or uncertain for omitted channels. 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. 1440 Carriage-Return Line-Feed Comma 17 3 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 55 2 0 A_bin_08 - A_bin_62 1 ASCII_Real 13 counts/sec/ster/cm^2/keV intensity values for channel A_bin_08 - A_bin_62; energy range for this channel is 24.9 to 781.2 keV -1.0E38 A_bin_08_UNCERT - A_bin_62_UNCERT 2 ASCII_Real 13 counts/sec/ster/cm^2/keV uncertainty values for channel A_bin_08 - A_bin_62; these are statistical uncertainties only 48 2 0 E_bin_15 - E_bin_62 1 ASCII_Real 13 counts/sec/ster/cm^2/keV intensity values for channel E_bin_15 - E_bin_62; energy range for these channels are 19.8 to 422.8 keV -1.0E38 E_bin_15_UNCERT - E_bin_62_UNCERT 2 ASCII_Real 13 counts/sec/ster/cm^2/keV uncertainty values for channel E_bin_15 - E_bin_62; these are statistical uncertainties only 34 2 0 F1_bin_26 - F1_bin_59 1 ASCII_Real 13 counts/sec/ster/cm^2/keV intensity values for channel F1_bin_26 - F1_bin_59; energy range for these channels are 199.6 to 1780.3 keV -1.0E38 F1_bin_26_UNCERT - F1_bin_59_UNCERT 2 ASCII_Real 13 counts/sec/ster/cm^2/keV uncertainty values for channel F1_bin_26 - F1_bin_59; these are statistical uncertainties only