ASTROSAT CZTI

Data Quality Report

Orbit 22962

Creation date: 2024-06-27T18:48:03.943264
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/AS1A08_009T01_9000003390_22962cztM0_level2.evt modeM0/AS1A08_009T01_9000003390_22962cztM0_level2_quad_clean.evt
Size (bytes)696,384,00088,761,600
Size664.1 MB 84.6 MB
Events in quadrant A3,190,957586,931
Events in quadrant B3,304,241596,133
Events in quadrant C3,174,766568,733
Events in quadrant D10,950,932453,192

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140901
B0143591
C0140861
D0373333

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6924951.372039%
B69241121.617562%
C69251181.703971%
D6924280340.482380%

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 7214 6925 0 0 0.00% 0.00%
B 7214 6925 4 4 0.06% 0.06%
C 7215 6926 0 0 0.00% 0.00%
D 7214 6925 2333 2333 32.34% 33.69%

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 13 170 39875 235.17 817 799 166.2
A 13 254 12392 69.77 817 799 166.2
A 3 137 7258 38.87 817 799 166.2
B 0 190 71255 453.74 809 788 155.3
B 0 189 29000 181.66 809 788 155.3
B 12 111 18855 116.33 809 788 155.3
C 14 238 123165 674.33 775 779 181.5
C 0 239 14920 77.92 775 779 181.5
C 7 247 11182 57.32 775 779 181.5
D 1 52 6692274 43231.0 637 615 154.8
D 13 172 1603313 10354.12 637 615 154.8
D 13 153 151600 975.43 637 615 154.8

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