XMM-Newton Data Files Handbook

4.1.9.1 ERM Count Rate Files

The ERM Count Rate files (*RM*ECX.FIT) are produced to cover every observation and slew period. Each file consists of a single binary table, where each entry (frame) corresponds to a telemetry packet. The binary table consists of the columns listed in Table 23.

Table 23: ERM Count Rate files (*RM*ECX.FIT) binary table columns

Name	Type	Units	Description
FTCOARSE	1J	SECONDS	Coarse frame time
FTFINE	1I		Fine frame time
FRAME	1J	COUNTER	Frame identifier
NLE0	1I		Counting LE0$^a$
NLE1	1I		Counting LE1$^a$
NLE2	1I		Counting LE2$^a$
NHE0	1I		Counting HE0$^a$
NHE1	1I		Counting HE1$^a$
NHE2	1I		Counting HE2$^a$
NHEC	1I		Counting HEC$^a$
WFSTAT	1I		Warning flag status
EVALCADD	1I		EVALCOMP address
EVALCNO	1I		EVALCOMP number

$^a$these values are compressed, with a pseudo-logarithmic compression method ([2])