Product_Observational

Identification_Area

logical_identifier

urn:nasa:pds:lp-mag-derived:data-fieldbins:map98_04_nor

version_id

1.0

title

Lunar Prospector Regional Field Maps Data at the Spacecraft North Field Component for 1998-APR

information_model_version

1.20.0.0

product_class

Product_Observational

Citation_Information

author_list

Hood, Lon L.

publication_year

2024

description

This file contains Lunar Prospector Magnetometer Derived Data of Regional Field Maps at the Spacecraft Altitude for 1998-04-01 to 1998-04-30.

Modification_History

Modification_Detail

modification_date

2025-02-26

version_id

1.0

description

This product, MAP98_04_NOR.TAB, was originally released as part of the PDS3 LP-L-MAG-5-LUNAR-FIELD-BINS-V1.0 data set. The metadata have been migrated to PDS4. The data themselves are unchanged.

Observation_Area

Time_Coordinates

start_date_time

1998-04-01T00:00:00.000Z

stop_date_time

1998-04-30T23:59:00.000Z

Primary_Result_Summary

purpose

Science

processing_level

Derived

description

Lunar Prospector Derived Spacecraft Altitude Data for Regional Field Maps

Science_Facets

discipline_name

Fields

facet1

Magnetic

facet2

Background

Investigation_Area

name

Lunar Prospector

type

Mission

Internal_Reference

lid_reference

urn:nasa:pds:context:investigation:mission.lunar_prospector

reference_type

data_to_investigation

Observing_System

Observing_System_Component

name

Lunar Prospector

type

Host

Internal_Reference

lid_reference

urn:nasa:pds:context:instrument_host:spacecraft.lp

reference_type

is_instrument_host

Observing_System_Component

name

Magnetometer

type

Instrument

Internal_Reference

lid_reference

urn:nasa:pds:context:instrument:lp.mag

reference_type

is_instrument

Target_Identification

name

Moon

type

Satellite

Internal_Reference

lid_reference

urn:nasa:pds:context:target:satellite.earth.moon

reference_type

data_to_target

Discipline_Area

Mission_Information

mission_phase_name

Primary Mission

Reference_List

Internal_Reference

lidvid_reference

urn:nasa:pds:lp-mager-derived:data-moon-pos:moon_pos::1.0

reference_type

data_to_ancillary_data

Internal_Reference

lidvid_reference

urn:nasa:pds:lp-mager-derived:data-spacecraft-pos:pos98_04::1.0

reference_type

data_to_ancillary_data

Source_Product_External

external_source_product_identifier

LP-L-MAG-5-LUNAR-FIELD-BINS-V1.0:MAP98_04_NOR

reference_type

data_to_derived_source_product

doi

10.17189/1519725

curating_facility

PDS Planetary Plasma Interactions Node

description

This is the first version converted to PDS4. The DOI references the source PDS3 data set.

File_Area_Observational

File

file_name

MAP98_04_NOR.TAB

creation_date_time

2003-09-02T19:15:28

file_size

354000

md5_checksum

528fcb0bfbfdfde11dc31518ee9b6ffa

comment

File naming convention: MAPyy_mm*_ttt.TAB, where yy indicates the year (98 or 99 for 1998 or 1999), mm indicates the month (01 for January, etc.), * indicates the map number for this month (A, B, etc.), and where ttt indicates the file type (ALT = Altitude),(EAS = East field component; NOR = North field component; RAD = Radial field component; TOT = total field.)

Table_Character

name

Lunar Prospector Regional Field Maps Data at the Spacecraft North Field Component for 1998-APR

offset

0

records

7080

description

Interpolation and two-dimensional filtering are applied to the calibrated data to produce gridded field component data files on a surface defined by the slowly varying spacecraft altitude. The spatial resolution of the grid is chosen to be much less than the mean spacecraft altitude. The measured parameters consist of the three vector components of the lunar crustal magnetic field in East, North, and Radial (ENR) coordinates, the field magnitude, and the spacecraft altitude. The units of the field measurements are nanoTeslas (nT). 1 nT = 0.00001 Gauss. The units of the spacecraft altitude are kilometers (km). ENR coordinates are centered at the instantaneous spacecraft location with X directed eastward, Y directed northward, and Z directed radial to the Moon.

record_delimiter

Carriage-Return Line-Feed

Record_Character

fields

4

groups

0

record_length

50

Field_Character

name

Latitude

field_number

1

field_location

1

data_type

ASCII_Real

field_length

12

unit

degrees

description

Latitude at this grid point (South is negative; North is positive).

Field_Character

name

East Longitude

field_number

2

field_location

14

data_type

ASCII_Real

field_length

11

unit

degrees

description

East longitude at this grid point.

Field_Character

name

Magnetic Field

field_number

3

field_location

26

data_type

ASCII_Real

field_length

11

unit

nT

description

Altitude in kilometers.

Field_Character

name

Data Points in Bin

field_number

4

field_location

38

data_type

ASCII_Real

field_length

11

description

Number of data points in this latitude/longitude bin. The bin size can be deduced from the difference between successive latitude and longitude values (e.g., 0.5 degrees by 0.5 degrees for altitudes near 100 km; 0.25 degrees by 0.25 degrees for altitudes near 25 km).