Data

Overview

Data Description

Level	Product	Description
1	Vector Magnetic Field from 3 sensors (M0, M1, M2) in spacecraft coordinates	CCSDS, each packet is 4-sec long at 10 Hz rate, 3-axis magnetic field components for all three sensors in coordinate system native to the HERMES Payload
1	Sensor Temperatures	Temperatures at M0, M1, M2
2	Vector Magnetic Field from 3 sensors (M0, M1, M2) in GSE coordinates	3d vector magnetic fields (Bx, By, Bz) in nT for each magnetometer (M0, M1, M2) using final calibrations for offsets and gains
2	Sensor Temperatures	Final calibrated temperatures
3	Magnetic field at Gateway	Background-subtracted and processed 3d vector magnetic field (Bx, By, Bz) in nT in a common coordinate system (e.g. GSE). Derived by combining individual sensor data.
QL	Vector Magnetic Field from 3 sensors (M0, M1, M2) in GSE coordinates (Unvalidated)	Despiked values for 3d vector magnetic fields (Bx, By, Bz) in nT for each magnetometer (M0, M1, M2) in their local coordinate system, plus temperatures in Celsius for each sensor. (and time-corrected and time-checked)

Getting Data

Reading Data

Calibrating Data

Data products below level 2 generally require calibration to be transformed into scientificically useable units. This section describes how to calibrate data files from lower to higher levels.