ASTROSAT CZTI

Data Quality Report

Orbit 03110

Creation date: 2024-06-27T14:24:45.579626
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/AS1G05_237T03_9000000426_03110cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03110cztM0_level2_quad_clean.evt
Size (bytes)415,411,20068,932,800
Size396.2 MB 65.7 MB
Events in quadrant A2,724,340430,658
Events in quadrant B3,122,791432,325
Events in quadrant C2,939,120431,613
Events in quadrant D3,416,111403,131

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118252
B0127722
C0126242
D0140532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5564430.772825%
B55641001.797268%
C5564681.222142%
D55641723.091301%

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 6779 5565 8 8 0.12% 0.14%
B 6779 5565 55 55 0.81% 0.99%
C 6779 5565 38 38 0.56% 0.68%
D 6779 5565 137 137 2.02% 2.46%

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 0 13 104901 774.03 660 647 134.7
A 13 14 24900 180.07 660 647 134.7
A 8 15 20225 145.36 660 647 134.7
B 5 70 174132 1345.01 671 659 129.0
B 4 81 155002 1196.69 671 659 129.0
B 15 204 90347 695.39 671 659 129.0
C 0 219 270136 1814.7 638 644 148.5
C 6 80 123693 828.58 638 644 148.5
C 1 16 38435 254.48 638 644 148.5
D 13 120 457446 2791.58 622 607 163.6
D 13 223 273405 1666.97 622 607 163.6
D 13 239 169944 1034.76 622 607 163.6

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