McIDAS Programmer's Manual
Version 2015

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MSUSCRPF

MSU calibration reference parameters.

The parameters in MSUSCRPF compute MSU (Microwave Sounding Unit) brightness temperatures and check the quality of MSU data. This binary file is organized chronologically by date; the last record is the most recent. Each record contains 48 words. There may be more than one record for a particular satellite.

The first record is a header record. The following records contain data. Words 0 through 11 in the data records are the coefficients of second-degree polynomials used to convert platinum resistance thermistor resistance measurements to temperatures for the internal warm targets.

This file is supplied with McIDAS-X.

For MSU calibration reference parameters Application Program Interfaces (APIs), refer to the API functions list at the end of this section.

Word allocation for record 1

Word Description

0

total number of records in the file

1 - 47

unused

Word allocation for records 2 through n

Word Description

0 - 3

resistance-to-temperature coefficients, zeroth order; if word 0 is the missing value, the record was deleted

4 - 7

resistance-to-temperature coefficients, first order

8 - 11

resistance-to-temperature coefficients, second order

12 - 23

coefficients to linearize MSU counts

24 - 27

high and low calibration points for electronic systems A and B

28 - 35

average space and target temperatures for channels 1 to 4

36 - 43

standard deviations of space and target temperatures for channels 1 to 4

44

nominal target temperature

45

MSU serial number

46

NOAA satellite number

47

date, yyyddd

API functions

Function Description

msucon

initializes the MSU constants

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