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| Citation |
L. R. Nittler,
MESSENGER H XRS REDUCED DATA RECORD MAPS V1.0,
NASA Planetary Data System, 2013. |
| Digital Object Identifier (DOI) |
Unable to retrieve DOI information. Please contact the PDS Help Desk for assistance.
|
| Data Set Abstract |
Abstract
========
This data set consists of the MESSENGER XRS reduced data record
observations, also known as RDRs, which are derived from the
calibrated data records, CDRs. Each XRS observation results in
four X-ray spectra. When an X-ray interacts with one of the four
detectors, a charge or voltage pulse is generated. This signal is
converted into one of 2^8 (256) channels, which are correlated to
energy. Over a commanded integration time period a histogram of
counts as a function of energy (channel number) is recorded. The
EDRs are the number of events in each channel of the four detectors
accumulated over the integration period. Channels above or below
the useful energy range of the detectors are not transmitted. The
result is three 244-channel GPC histograms and one 231-channel
solar monitor histogram, each of which is designated as a single
X-ray spectrum.
Each observation is calibrated and processed into the CDR data set
and then further processed to produce a map of elemental ratios,
the maps of which compose the RDR data set. |
| Search/Access Data |
Geosciences Web Services
Mercury Orbital Data Explorer
Geosciences Online Archives
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| Additional Information |
| Mission Information |
MESSENGER
|
| Data Set Information |
MESS-H-XRS-3-RDR-MAPS-V1.0 |
| Instrument Host Information |
MESS
|
| Instrument Information |
XRS
|
| Target Information |
MERCURY
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