LP Large-Scale Vector Field Maps Data (DATAL4, Level 4)

DATAL4 – LP Large-Scale Vector Field Maps Data Collection

Instrument: Magnetometer

PDS Data Set ID: LP-L-MAG-5-SURFACE-FIELD-MAP-V1.0DOI: 10.17189/1519726

PDS4 Collection: urn:nasa:pds:lp-mag-derived:data-lunarsurfaceDOI: 10.17189/dfra-ha54

For more information about MAG DATAL4 products, see the Lunar Prospector Large-Scale Vector Field Maps Data Description.

The Lunar Prospector Magnetometer (DATAL4) Level 4 Data (DATAL4) data products are large-scale vector field maps at a common altitude of 37 km. The spatial resolution of the grid (0.25x0.25 degrees) is much less than the mean S/C altitude.

The measured parameters consist of the three vector components of the lunar crustal magnetic field in East, North, and Radial (ENR) coordinates, and the field magnitude at an altitude of 37 km. The units of the field measurements are nanoTeslas (nT). 1 nT = 0.00001 Gauss. ENR coordinates are centered at the instantaneous spacecraft location with X directed eastward, Y directed northward, and Z directed radial to the moon.

MAG DATAL4 products have the following file names:

B_aaa-bbbd_ttt.TAB

where:

aaa = initial latitude or longitude for the file

bbb = final latitude or longitude for this file

d = compass direction, N, S, E, or W

ttt = field component mapped in the file

EAS = east field component

NOR = north field component

RAD = radial field component

TOT = total field

In ODE, DATAL4 products have the following product IDs:

B_AAA-BBBD_TTT