Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0022-1-0.ps.gz Äàòà èçìåíåíèÿ: Wed Jan 3 15:10:23 2001 Äàòà èíäåêñèðîâàíèÿ: Mon Oct 1 21:36:06 2012 Êîäèðîâêà: Ïîèñêîâûå ñëîâà: zodiacal light

XMM­Newton CCF Release Note
XMM­CCF­REL­22
OM Lookup Tables
R. Much
October 3, 2000
1 CCF components
Name of CCF VALDATE List of Blocks
changed
CAL VERSION XSCS flag
OM DIFFUSEGALA 0001 2000­01­01T00:00:00 DGL MAP No
DGL SPEC No
DGL COUNTS No
OM ZODIACAL 0001 2000­01­01T00:00:00 ZODICAL MAP No
ZODIACAL SPEC No
ZODIACAL COUNTS No
OM QUICKMAG 0002 2000­01­01T00:00:00 FILTER­U Yes
FILTER­V Yes
FILTER­B Yes
FILTER­UVW1 Yes
FILTER­UVW2 Yes
FILTER­UVM2 Yes
FILTER­WHITE Yes
FILTER­MAGNI Yes
FILTER­GRISM1 No
FILTER­GRISM2 No
FILTER­GRISM11 No
FILTER­GRISM21 No
2 Changes
First release
The three files om diffusegala, om zodiacal and om quickmag keep the values which are used as
lookup tables for estimating photon rates by the PHS tools and by QLA. The files om diffusegala and
om zodiacal keep an intensity map, the average spectrum and an estimate of the expected photon
1

XMM­Newton CCF Release XMM­CCF­REL­22 Page: 2
rate for the different filter elements of the diffuse galactic light and the zodiacal light respectively.
The om quickmag file contains estimates for the conversion factors from photon rates into magnitudes
for different spectral types.
All three files contain pre­launch values.
Updates are expected once a better throughput calibration is available and also the origin of the
throughput deficit is better understood.
3 Scientific Impact of this Update
First release
4 Estimated Scientific Quality
The data are currently not used within SAS and their usage is restricted to the operational system.
Depending on wavelength the photon rate is overestimated between a factor 5 (UVW2) and 1.7 (V).