XMM-Newton Data Files Handbook

6.2 Event list structure in the MOS Timing Mode

In Timing Mode, only the central chip, CCD1, operates in timing mode, while the peripheral chips, CCDs 2-7, operate in imaging mode. Thus, for Timing mode observations, an imaging events file is still being produced, but with only 6 extensions for EXPOSU$0n$, BADPIX$0n$, and STDGTI$0n$, representing CCDs 2-7 as described in Sect. 6.1.

The MOS Timing Mode event file is produced by emproc only for CCD1 and is named

REVN_OBSID_EMOS$[$1,2$]$_SEEE_TimingEvts.ds

with REVN the 4-digit revolution number, OBSID the 10-digit observation ID, and EEE the exposure number.

This file is similar to the Imaging file described in Table 31 with differences in the EVENT, OFFSET and GTI$00n$ZZ extensions:

• EVENT extension: As in Table 31, but without the columns RAWY, DETX, DETY, X, and Y.
• OFFSET extension: As in Table 31, but without the column OFFSETY
• If additional time filters have been applied, there will only be one type extension GTI$000$ZZ, thus as in Table 31, but only for $n=0$.

The extensions EXPOSU01, BADPIX01, and STDGTI01 are identical to the imaging mode.