ASTROSAT CZTI

Data Quality Report

Orbit 09866

Creation date: 2024-06-27T15:51:36.468137
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/AS1A03_117T06_9000001404_09866cztM0_level2.evt modeM0/AS1A03_117T06_9000001404_09866cztM0_level2_quad_clean.evt
Size (bytes)502,496,64095,713,920
Size479.2 MB 91.3 MB
Events in quadrant A3,345,988605,862
Events in quadrant B3,414,334623,238
Events in quadrant C4,591,276593,335
Events in quadrant D3,382,236579,672

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0181
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014909146
B015023151
C018674230
D015141144

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01484
D01482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7132861.205833%
B71321041.458216%
C71191712.402023%
D7132941.318003%

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 8979 7197 0 0 0.00% 0.00%
B 8979 7198 0 0 0.00% 0.00%
C 8979 7197 79 79 0.88% 1.10%
D 8979 7198 7 7 0.08% 0.10%

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 13 251 14865 79.18 864 845 177.1
A 0 226 7848 39.55 864 845 177.1
A 12 194 6845 33.88 864 845 177.1
B 0 85 25630 147.76 868 847 167.7
B 12 111 19562 111.58 868 847 167.7
B 11 111 16723 94.66 868 847 167.7
C 4 254 1278230 6535.85 841 847 195.4
C 9 221 14386 69.27 841 847 195.4
C 14 234 6750 30.2 841 847 195.4
D 1 52 95883 438.15 837 819 217.0
D 10 172 37180 167.59 837 819 217.0
D 2 234 32628 146.61 837 819 217.0

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