Search Results
1–21 of 21 results (0.000 seconds)
-
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 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 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 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 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 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 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 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 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 MAG Calibrated VSO Coordinates Science Data Collection
Spacecraft position and calibrated 3-axis magnetic field samples in Venus Solar Orbital (VSO) coordinates. The data are tagged with latency corrected UTC and MET time stamps. The VSO CDR is derived from the Science EDR. -
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 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 MAG Time-Averaged Calibrated VSO Coordinates Science Data Collection
Time-averaged spacecraft position and calibrated 3-axis magnetic field samples in Venus Solar Orbital (VSO) coordinates. The data are tagged with latency corrected UTC and MET time stamps at the center of each interval. The VSO 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 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 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 MAG Calibrated MSO Coordinates Science Data Collection
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. The MSO CDR is derived from the Science EDR.
Data Sets and Information