ASTROSAT CZTI

Data Quality Report

Orbit 44755

Creation date: 2024-06-27T23:06:09.029053
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_004T12_9000006020_44755cztM0_level2.fits modeM0/AS1A13_004T12_9000006020_44755cztM0_level2_quad_clean.evt
Size (bytes)549,311,040123,223,680
Size523.9 MB 117.5 MB
Events in quadrant A6,228,472795,381
Events in quadrant B4,716,848830,924
Events in quadrant C3,713,697820,092
Events in quadrant D5,062,329735,995

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253150
B0194800
C0169210
D0206680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78884816.097870%
B78883634.601927%
C7889841.064774%
D78893374.271771%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7888 7888 114 114 1.45% 1.45%
B 7888 7888 151 151 1.91% 1.91%
C 7889 7889 44 44 0.56% 0.56%
D 7889 7889 248 248 3.14% 3.14%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 2038843 11294.68 864 845 180.4
A 15 223 826374 4575.12 864 845 180.4
A 13 248 22404 119.48 864 845 180.4
B 0 189 847533 4878.82 869 840 173.5
B 5 255 349828 2010.94 869 840 173.5
B 0 190 41887 236.52 869 840 173.5
C 14 254 164398 808.68 862 866 202.2
C 1 3 152169 748.2 862 866 202.2
C 0 207 13218 61.08 862 866 202.2
D 13 249 647183 3039.78 851 820 212.6
D 4 221 482521 2265.39 851 820 212.6
D 5 235 226092 1059.43 851 820 212.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter