ASTROSAT CZTI

Data Quality Report

Orbit 44309

Creation date: 2024-06-27T23:01:55.975993
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_004T13_9000005988_44309cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44309cztM0_level2_quad_clean.evt
Size (bytes)506,707,200124,064,640
Size483.2 MB 118.3 MB
Events in quadrant A5,407,779821,150
Events in quadrant B4,174,542840,272
Events in quadrant C3,886,690808,177
Events in quadrant D4,683,245744,857

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224683
B0176423
C0170513
D0194343

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77831702.184248%
B77831902.441218%
C77831632.094308%
D77832553.276372%

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 9173 7784 16 16 0.17% 0.21%
B 9173 7784 41 41 0.45% 0.53%
C 9173 7786 81 81 0.88% 1.04%
D 9173 7785 156 156 1.70% 2.00%

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 1766546 9588.76 879 861 184.1
A 7 3 98759 531.65 879 861 184.1
A 10 248 62620 335.39 879 861 184.1
B 5 172 201120 1134.71 879 851 176.5
B 0 190 197451 1113.92 879 851 176.5
B 5 255 109720 616.84 879 851 176.5
C 14 254 465858 2273.04 865 869 204.6
C 3 233 32914 156.65 865 869 204.6
C 1 3 11208 50.54 865 869 204.6
D 13 249 405169 1862.87 863 836 217.0
D 13 171 320814 1474.22 863 836 217.0
D 13 138 177045 811.84 863 836 217.0

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