ASTROSAT CZTI

Data Quality Report

Orbit 32352

Creation date: 2024-06-27T20:39:11.123702
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/AS1A10_005T01_9000004700_32352cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32352cztM0_level2_quad_clean.evt
Size (bytes)635,616,00098,634,240
Size606.2 MB 94.1 MB
Events in quadrant A3,483,899674,342
Events in quadrant B6,340,510645,323
Events in quadrant C4,179,474618,051
Events in quadrant D4,823,872612,970

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142451
B0233811
C0164821
D0185731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6252460.735765%
B62524907.837492%
C62524116.573896%
D62521652.639155%

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 7557 6253 2 2 0.03% 0.03%
B 7557 6253 273 273 3.61% 4.37%
C 7557 6253 163 163 2.16% 2.61%
D 7557 6253 119 119 1.57% 1.90%

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 12 189 253411 1555.73 824 810 162.4
A 13 6 20191 119.36 824 810 162.4
A 12 96 19406 114.53 824 810 162.4
B 6 159 2031012 13681.73 806 789 148.4
B 5 172 761521 5126.59 806 789 148.4
B 12 18 123318 825.73 806 789 148.4
C 0 10 708850 3901.16 779 785 181.5
C 14 238 155865 854.43 779 785 181.5
C 4 175 82750 451.6 779 785 181.5
D 8 195 1160545 6216.22 796 777 186.6
D 12 233 167352 892.82 796 777 186.6
D 12 6 127651 680.03 796 777 186.6

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