ASTROSAT CZTI

Data Quality Report

Orbit 22073

Creation date: 2024-06-27T18:36:14.010249
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/AS1A07_138T08_9000003268_22073cztM0_level2.evt modeM0/AS1A07_138T08_9000003268_22073cztM0_level2_quad_clean.evt
Size (bytes)438,713,28087,088,320
Size418.4 MB 83.1 MB
Events in quadrant A3,039,860570,814
Events in quadrant B3,090,982577,358
Events in quadrant C3,080,800549,942
Events in quadrant D3,683,203536,214

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126610
B0127710
C0128070
D0148140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5765681.179532%
B5764971.682859%
C57651392.411101%
D57652534.388552%

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 7055 5766 0 0 0.00% 0.00%
B 7054 5765 0 0 0.00% 0.00%
C 7054 5765 6 6 0.09% 0.10%
D 7055 5766 163 163 2.31% 2.83%

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 13 254 8523 49.65 789 775 156.0
A 0 226 6841 38.87 789 775 156.0
A 3 137 5862 32.6 789 775 156.0
B 6 36 19533 132.37 779 761 141.8
B 12 111 16215 108.97 779 761 141.8
B 11 111 14486 96.78 779 761 141.8
C 14 238 122248 704.71 754 760 172.4
C 10 22 18717 104.16 754 760 172.4
C 13 61 5203 25.77 754 760 172.4
D 7 223 377505 2091.73 759 739 180.1
D 1 52 187775 1038.39 759 739 180.1
D 2 136 169301 935.82 759 739 180.1

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