XMM-Newton Science Analysis System


lcplot (lcplot-1.22.1) [xmmsas_20230412_1735-21.0.0]

Future developments

• A parameter Time_Unit could be added to the parameter file. It would allow a choice of different time axis units (e.g. Hours after TSTART).
• The results of the statistical analysis could be saved as keywords in the header of the light curves source FITS file. Example, for the first energy band, one could add :

AVRGE_1 =       .............. / Avg, count/s in light-curve
FREXP_1 =       .............  / Avg. Frac exposure in light-curve
VAROB_1 =       .............  / observed variance
VAREX_1 =       .............  / expected variance
THRDM_1 =       .............  / third moment
MININ_1 =       .............  / Minimun Intensity
MAXIN_1 =       .............  / Maximun Intensity
EXVAR_1 =       .............  / excess of variance
CHI2_1  =       .............  / Chi squared
CHI2PR_1=       .............  / Chi squared probability
KS_1    =       .............  / K-S test value
KSPR_1  =       .............  / K-S probability
RMS_1   =       .............  / RMS variability
AVRGE_E1=       .............  / Error Avg count/s
VAROB_E1=       .............  / Error observed variance
VAREX_E1=       .............  / Error expected variance
CHI2_E1 =       .............  / Error Chi2
RMS_E1  =       .............  / Error RMS variability