ASTROSAT CZTI

Data Quality Report

Orbit 22089

Creation date: 2024-06-27T18:36:34.119160
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/AS1T03_146T01_9000003272_22089cztM0_level2.evt modeM0/AS1T03_146T01_9000003272_22089cztM0_level2_quad_clean.evt
Size (bytes)482,100,480104,440,320
Size459.8 MB 99.6 MB
Events in quadrant A3,280,017714,669
Events in quadrant B3,365,931719,987
Events in quadrant C3,139,604664,489
Events in quadrant D4,412,228649,478

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133181
B0136121
C0128701
D0171411

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59291562.631135%
B59291662.799798%
C59291342.260078%
D59292404.047900%

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 7179 5930 48 48 0.67% 0.81%
B 7179 5930 32 32 0.45% 0.54%
C 7179 5930 0 0 0.00% 0.00%
D 7179 5930 92 92 1.28% 1.55%

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 15 174 136143 838.52 808 793 161.4
A 14 235 25271 151.65 808 793 161.4
A 13 254 10224 58.43 808 793 161.4
B 3 64 106419 706.1 796 782 149.6
B 0 197 48817 321.08 796 782 149.6
B 0 228 39978 261.99 796 782 149.6
C 14 238 121397 695.72 750 759 173.4
C 10 22 66145 377.08 750 759 173.4
C 5 112 18212 100.65 750 759 173.4
D 1 52 1295804 6974.48 770 751 185.7
D 2 16 64616 343.94 770 751 185.7
D 2 136 53267 282.82 770 751 185.7

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