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Data Sets and Information
• collection: MESSENGER EPPS FIPS Calibrated High Priority Spectra Data Collection
  FIPS calibrated spectra data containing flux spectra and proton velocity distributions.
• collection: MESSENGER EPPS FIPS Derived Pitch Angle Distributions Data Collection
  FIPS derived histograms of pitch angle in 5 degree bins for selected ion species during selected time periods.
• collection: MESSENGER EPPS EPS Raw Pulse Height Data Collection
  Uncalibrated Pulse Height Analysis data in binary table format. The PHA EDR format was changed by FSW6 on 8/18/2008.
• collection: MESSENGER MAG Raw Science Header Information Data Collection
  Captures the instrument state (health and mode) as reported by the science packet. This information only changes on packet boundaries so it is kept in a separate EDR, minimizing repetition of information. Each row in the Science Header EDR corresponds to the information extracted from one science packet.
• collection: MESSENGER EPPS EPS Raw Scan Rates Data Collection
  Contains the integrated hardware counters over four energy thresholds. Each threshold setting and integration lasts 1/4 second. New FSW6 EDR introduced on 8/18/2008.
• collection: MESSENGER EPPS FIPS Derived Viewing Normalization Data Collection
  FIPS derived rotation matrix from FIPS cartesian to MSO for each energy scan.
• collection: MESSENGER MAG Burst Science Log Data Collection
  A cumulative file for the entire mission. The purpose of the file is to keep a time log of bursts recorded by the instrument, as well as the number of burst packets recorded for each Burst EDR.
• collection: MESSENGER EPPS FIPS Derived Observed Density Data Collection
  FIPS derived observed density (n_obs) for all major ion species as well as UTC and MESSENGER position.
• collection: MESSENGER MAG Calibrated RTN Coordinates Science Data Collection
  Calibrated 3-axis magnetic field samples in Radial-Tangential-Normal (RTN) coordinates. The spacecraft position is given by the radial distance from Sun center, northward latitude above the instantaneous ecliptic plane, and azimuth angle of the spacecraft in the instantaneous ecliptic plane with respect to the Earth-Sun line, positive in direction of the Earth's orbital motion. The data are tagged with latency corrected UTC and MET time stamps. The RTN CDR is derived from the Science EDR.
• collection: MESSENGER MAG Time-Averaged Calibrated MBF Coordinates Science Data Collection
  Time-averaged spacecraft position and calibrated 3-axis magnetic field samples in Mercury Body Fixed (MBF) coordinates. The data are tagged with latency corrected UTC and MET time stamps at the center of each interval. The MBF CDR is derived from the Science CDR for this coordinate system with time averages computed within 1, 5, 10, and 60 s intervals.
• collection: MESSENGER EPPS EPS Calibrated Pulse Height Data Collection
  EPS calibrated Pulse Height Analysis data in ASCII table format. The lack of priority groups after the FSW6 load on 8/18/2008 means the weight and group columns of the data are not meaningful after that time.
• collection: MESSENGER EPPS FIPS Raw Medium Priority Spectra Data Collection
  FIPS medium priority spectra. This product was retired with the switch to FSW6, 8/18/2008.
• collection: MESSENGER MAG Raw Science Data Collection
  The primary science MAG raw data, consisting of 3-axis field samples from the magnetometer at the commanded sample rate.
• collection: MESSENGER EPPS EPS Raw Low Resolution Spectra Data Collection
  EPS low resolution (energy channel) uncalibrated ion and electron energy spectra and rate counters. New FSW6 EDR introduced on 8/18/2008, replaces EPS_MED_SPECTRA.
• collection: MESSENGER EPPS FIPS Raw Pulse Height Data Collection
  FIPS Pulse Height Analysis data in binary table format. As of 8/18/2008 the PHA data product was generated from High or Low Priority spectra packets or from FIPS Scan packets. The file naming convention identifies the source packet. Format updated by FSW5 on 9/6/2007.
• collection: MESSENGER MAG Time-Averaged Calibrated MSO Coordinates Science Data Collection
  Time-averaged spacecraft position and calibrated 3-axis magnetic field samples in Mercury Solar Orbital (MSO) coordinates. The data are tagged with latency corrected UTC and MET time stamps at the center of each interval. The MSO RDR is derived from the Science CDR for this coordinate system with time averages computed within 1, 5, 10, and 60 s intervals.
• collection: MESSENGER MAG Calibrated J2000 Coordinates Science Data Collection
  Spacecraft position and calibrated 3-axis magnetic field samples in J2000 coordinates. The data are tagged with latency corrected UTC and MET time stamps. The J2K CDR is derived from the Science EDR.
• collection: MESSENGER MAG Low-Rate Housekeeping Information Data Collection
  This collection contains tables of instrument state as reported by the MAG Low-Rate Housekeeping (LRHK) packet. It includes the 3-axis field values (received from the filter and subsampling logic) and the corresponding AC values.
• collection: MESSENGER EPPS FIPS Calibrated Medium Priority Spectra Data Collection
  FIPS calibrated spectra data containing flux spectra and proton velocity distributions.
• collection: MESSENGER MAG Calibrated Alternating Current Data Collection
  Ancillary MAG data containing calibrated alternating current (AC) values of the average output amplitude a 1-to-10 Hz bandpass filter for a single magnetometer axis selected by command.
• collection: MESSENGER EPPS FIPS Raw High Resolution Proton Velocity Distributions Data Collection
  Contains a 32 x 32 FIPS uncalibrated high resolution proton velocity distribution, integrated over a 10 scan sequence. New FSW6 EDR.
• collection: MESSENGER MAG Time-Averaged Calibrated RTN Coordinates Science Data Collection
  Time-averaged spacecraft position and calibrated 3-axis magnetic field samples in Radial-Tangential-Normal (RTN) coordinates. The spacecraft postion is given by the radial distance from Sun center, northward latitude above the instantaneous ecliptic plane, and azimuth angle of the spacecraft in the instantaneous ecliptic plane with respect to the Earth-Sun line, positive in direction of the Earth's orbital motion. The data are tagged with latency corrected UTC and MET time stamps at the center of each interval. The RTN RDR is derived from the Science CDR for this coordinate system with time averages computed within 1, 5, 10, and 60 s intervals.
• collection: MESSENGER MAG Low-Rate Header Information Data Collection
  MAG instrument state (health and mode) as reported by the LRHK packet. This changes only on packet boundaries so it is kept in a separate EDR, minimizing repetition of information. Each row in the LHRK Header EDR corresponds to information extracted from one LHRK packet.
• collection: MESSENGER EPPS EPS Calibrated High Priority Spectra Data Collection
  EPS high energy resolution calibrated spectra similar to the EPS_HIRES_SPECTRA product, but with the configuration from before the new FSW6 load on 8/18/2008.
• collection: MESSENGER EPPS EPS Derived Daily Pitch Angle Spectrograms Data Collection
  Contains derived daily pitch angle spectrogram data for the EPS odd-numbered shaped channels (ion=1,5,7,9). A given pitch angle spectrogram DDR data file contains all the observations obtained on one electron event. The particle measurement is 120 seconds averaged.
• collection: MESSENGER EPPS EPS Derived Pitch Angle Data Collection
  EPS derived pitch angles for each of the six look directions reported at the same cadence as the EPS LoRes Spectral rate measurements. Each file thus has a one-to-one relationship with a corresponding LoRes spectral file.
• collection: MESSENGER MAG Time-Averaged Calibrated Spacecraft Coordinates Science Data Collection
  Time-averaged calibrated 3-axis magnetic field samples in sensor and spacecraft coordinates. The data are tagged with latency corrected UTC and MET time stamps at the center of each interval. The SC RDR is derived from the Science CDR for this coordinate system with time averages computed within 1 s intervals.
• collection: MESSENGER EPPS FIPS Derived Energy Spectra Data Collection
  FIPS derived differential energy flux at each E/q value for selected ion species during selected time periods.
• collection: MESSENGER MAG Status Information Data Collection
  MAG instrument raw status information, temperatures, voltage, command status counts as well as low-resolution (14-bit) 3-axis magnetic field samples as recorded by A/D converters integral to the Low Voltage Power Supply (LVPS).
• collection: MESSENGER EPPS FIPS Derived Energy-Resolved Pitch Angle Distributions Data Collection
  FIPS derived histograms of pitch angle in 5 degree bins for selected ion species during selected time periods with the additional separation of energy/charge (i.e., E/q).
• collection: MESSENGER EPPS FIPS Calibrated Pulse Height Data Collection
  FIPS calibrated Pulse Height Analysis data.
• collection: MESSENGER MAG Calibrated MBF Coordiantes Science Data Collection
  Spacecraft position and calibrated 3-axis magnetic field samples in Mercury body fixed coordinates. The data are tagged with latency corrected UTC and MET time stamps. The MBF CDR is derived from the Science EDR.
• collection: MESSENGER EPPS EPS Calibrated Medium Priority Spectra Data Collection
  EPS lower energy resolution calibrated spectra similar to the EPS_LORES_SPECTRA product, but with the configuration from before the new FSW6 load on 8/18/2008.
• collection: MESSENGER EPPS EPS High Priority Housekeeping Data Collection
  EPS high priority housekeeping. This product was retired with the switch to FSW6, 8/18/2008.
• collection: MESSENGER EPPS EPS Raw Summary Spectra Data Collection
  Contains a subset of EPS rate counters and low resolution uncalibrated energy spectra. New FSW6 EDR introduced on 8/18/2008.
• collection: MESSENGER EPPS FIPS Derived Kinetic Properties Data Collection
  FIPS derived number density (cm^-3), temperature (K) and pressure (nPa) for selected major ion species over selected time periods.
• collection: MESSENGER MAG Calibrated Spacecraft Coordinates Science Data Collection
  Calibrated 3-axis magnetic field samples in sensor and spacecraft coordinates. The data are tagged with latency corrected UTC and MET time stamps. The SC CDR is derived from the Science EDR.
• collection: MESSENGER EPPS EPS Calibrate Scan Rate Data Collection
  Integrated EPS hardware counters over four energy thresholds. Each threshold setting and integration lasts 1/4 second. Rates are reported in both raw and 'delta' form, see SIS document for details. CDR available only after FSW6 (8/18/2008).
• collection: MESSENGER EPPS EPS Raw High Priority Spectra Data Collection
  High priority uncalibrated EPS Spectra. This product was retired with the switch to FSW6, 8/18/2008.
• collection: MESSENGER EPPS FIPS Calibrated High Priority Spectra Data Collection
  FIPS calibrated spectra data containing flux spectra and proton velocity distributions.
• collection: MESSENGER MAG Alternating Current Data Collection
  Contains alternating current (AC) level values at the commanded sample rate. To conserve telemetry the vector sampling will usually be less than the maximum rate, 20 sample/s. To provide a record of the amplitude of fluctuations for frequencies higher than 1 Hz, an AC amplitude is calculated from the internally sampled 20/s data for the sensor axis commanded as the AC_AXIS. Thus, in addition to the vector samples data, a 1 Hz to 10 Hz bandpass average amplitude is evaluated for the commanded sensor axis, selected by command, and recorded as a log AC value with a 4-bit mantissa of the four most significant non-zero bits and a 4-bit power of two exponent of the 4th (least significant) bit of the mantissa. This is called the logAC value. It is created once per second and saved for telemetry at that rate or at the commanded science rate, whichever is less frequent.
• collection: MESSENGER EPPS EPS Calibrated High Resolution Spectra Data Collection
  EPS high resolution (energy channels) calibrated ion and electron energy spectra. Replaces EPS_HI_SPECTRA after FSW6 (loaded on 8/18/2008).
• collection: MESSENGER EPPS EPS Calibrated Low Resolution Spectra Data Collection
  EPS low resolution (energy channel) calibrated ion and electron energy spectra and rate counters. Replaces EPS_MED_SPECTRA after FSW6 (loaded on 8/18/2008).
• collection: MESSENGER EPPS FIPS Raw Scan Data Collection
  Rate counts sampled at each Deflection System High Voltage (DSHV) step in a FIPS scan. New FSW6 EDR.
• collection: MESSENGER MAG Time-Averaged Calibrated J2000 Coordinates Science Data Collection
  Time-averaged spacecraft position and calibrated 3-axis magnetic field samples in J2000 coordinates. The data are tagged with latency corrected UTC and MET time stamps at the center of each interval. The J2K RDR is derived from the Science CDR for this coordinate system with time averages computed within 1, 5, 10, and 60 s intervals.
• collection: MESSENGER MAG Raw Burst Science Data Collection
  This collection contains snapshots of MAG vector samples, or burst sampling, over a time span of 8 minutes, at a rate of 20 samples per second for a total of 9600 vector samples. The burst data give information about waves and turbulent phenomena expected to occur at the magnetospheric boundaries and elsewhere in association with pickup processes of volatile species as they are photo-ionized. Typically one burst period will be recorded every day of orbit operations.
• collection: MESSENGER EPPS EPS Calibrated Summary Spectra Data Collection
  Contains a subset of EPS rate counters and low resolution calibrated energy spectra. CDR available only after FSW6 (8/18/2008).
• collection: MESSENGER EPPS FIPS Angular Flux Map Data Collection
  Contains a mapping of the integrated FIPS ion flux as a function of flow direction for selected ions and regions around Mercury.
• collection: MESSENGER EPPS Engineering and Long Status Information Data Collection
  The engineering and status information for the EPPS instrument. New FSW5 EDR introduced on 9/6/2007.
• collection: MESSENGER EPPS EPS Raw High Resolution Spectra Data Collection
  High resolution (energy channels) uncalibrated ion and electron energy spectra. New FS W6 EDR introduced on 8/18/2008, replaces EPS_HI_SPECTRA.

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