KAGUYA (SELENE) Lunar Magnetometer Instrument

ODE: Moon

Search KAGUYA Lunar Magnetometer data in Lunar ODE: Product Search

The KAGUYA's Lunar Magnetometer (LMAG) instrument enables the study on the present and ancient (say, 3-4 billion years ago) environment of magnetic fields and plasma on and around the Moon and also on the evolution of its deep interior.

LMAG magnetometer can measure a magnetic field weaker than 1/100,000 of the geomagnetic field. Its sensor is mounted on the edge of a super-lightweight mast extended from the spacecraft at 12m length in order to avoid the magnetic interference

ODE supports the search, exploration, and download of KAGUYA LMAG Calibrated (corrected), and Derived data products.

Type	Description	Data Set
Calibrated Data - Magnetic field time series	Time series of magnetic field. Time, the location of the satellite and three magnetic field components are recorded in two coordinate system. Sampling time interval is four seconds. The data are those of nominal observation and optional observation.	SLN-L-LMAG-3-MAG-TS-V1.0
Derived Data - MA_GD, MA_GDOP	Both are grid data of magnetic anomaly components and related quantities. Grid spacing is 1 degree in each direction. The files contain north-south, west-east, vertical components of the magnetic anomaly, their standard errors, and number of data used for the calculations of the magnetic anomaly components (9 components in total). Altitude is 100 km for MA_GD data. Magnetic field data of nominal observation are used. Altitude is 30 km for MA_GDOP data (Tsunakawa et al. 2014). Magnetic field data of optional observation are used.	SLN-L-LMAG-5-MA-GRID-V1.0, SLN-L-LMAG-5-MA-GRID-OPTION-V1.0
Derived Data - MA_MAP, MA_MAPOP	Both are maps of magnetic anomaly components and related quantities. Grid spacing is 1 degree in each direction. The files contain north-south, west-east, vertical components of the magnetic anomaly, their standard errors, and number of data used for the calculations of the magnetic anomaly components (9 components in total). Altitude is 100 km for MA_MAP data. Magnetic field data of nominal observation are used. Altitude is 30 km for MA_MAPOP data (Tsunakawa et al. 2014). Magnetic field data of optional observation are used.	SLN-L-LMAG-5-MA-MAP-V1.0, SLN-L-LMAG-5-MA-MAP-OPTION-V1.0
Derived Data - 1D electrical conductivity structure	One dimensional structure of electrical conductivity. Depth and conductivity values are recorded. Magnetic field data of nominal observation are used.	SLN-L-LMAG-5-1D-SIGMA-ECS-V1.0

Tsunakawa, H., Takahashi, F., Shimizu, H., Shibuya, H., & Matsushima, M. (2014). Regional mapping of the lunar magnetic anomalies at the surface: Method and its application to strong and weak magnetic anomaly regions. Icarus, 228, 35-53. https://doi.org/10.1016/j.icarus.2013.09.026