ASTROSAT CZTI

Data Quality Report

Orbit 32111

Creation date: 2024-06-27T20:36:36.314236
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/AS1T04_051T01_9000004686_32111cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32111cztM0_level2_quad_clean.evt
Size (bytes)747,158,400126,037,440
Size712.5 MB 120.2 MB
Events in quadrant A4,117,020831,713
Events in quadrant B7,020,852815,217
Events in quadrant C4,321,473815,674
Events in quadrant D6,612,701782,776

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173862
B0265332
C0179932
D0254432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82233083.745592%
B82245907.174125%
C82243334.049125%
D82243173.854572%

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 8287 8223 0 0 0.00% 0.00%
B 8289 8224 32 32 0.39% 0.39%
C 8289 8225 15 15 0.18% 0.18%
D 8289 8225 145 145 1.75% 1.76%

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 6 17747 78.14 1060 1037 213.8
A 13 254 16680 73.15 1060 1037 213.8
A 3 137 10877 46.02 1060 1037 213.8
B 6 159 2255520 11364.23 1030 1004 198.4
B 10 245 282383 1418.33 1030 1004 198.4
B 0 190 173833 871.17 1030 1004 198.4
C 14 238 165274 691.4 1009 1014 237.6
C 0 10 117931 492.13 1009 1014 237.6
C 2 16 29367 119.34 1009 1014 237.6
D 8 195 1975827 8101.67 1022 991 243.8
D 12 233 415687 1701.27 1022 991 243.8
D 12 79 216212 882.93 1022 991 243.8

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