LRO LEND PDS4 Raw Science Data Experiment Data Record (EDRSCI4)

EDRSCI4 – PDS4 Raw Science Data Experiment Data Record

Instrument: Lunar Exploration Neutron Detector

PDS3 Data Set ID: LRO-L-LEND-2-EDR-V1.0 DOI: 10.17189/1520637

PDS4 Bundle:urn:nasa:pds:lro_lend DOI: 10.17189/p89b-8w72

For more information about LEND raw products, see the EDR Product SIS.

For more information about the PDS3 volume, see the LEND Archive Volume SIS.

The Lunar Exploration Neutron Detector (LEND) PDS4 Raw Science Experiment Data Record (EDRSCI4) contains a time series of the raw spectral data.

A process termed “ingest” occurs on the LEND Science Operations Center computer which receives data from the LRO Mission Operator Center. The ingest process verifies the consistency of the data. The LEND raw data product is output by software that maps the stored raw spectral data into the EDRSCI4 raw product.

Time series datum in the LEND raw data product is sorted according to the value of the spacecraft clock. Time series records are tagged by spacecraft time which is the 5 MSB of the spacecraft clock, 4 bytes of seconds, and 1 byte of subsecond. The LEND Instrument contains its own internal clock. Values from this clock are also included; units are in 0.016 seconds since the last power on of the instrument.

LEND EDRSCI4 products have the following file names:

LEND_EDR_SCI_yyyymmdd.DAT (with detached PDS label)

where:

yyyymmdd = 8-digit date specifier

In ODE, LEND EDRSCI4 products have the following product IDs:

LEND_EDR_SCI_YYYYMMDD_DAT