ASTROSAT CZTI

Data Quality Report

Orbit 15344

Creation date: 2024-06-27T17:07:10.958909
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/AS1T02_073T01_9000002260_15344cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15344cztM0_level2_quad_clean.evt
Size (bytes)549,034,56092,537,280
Size523.6 MB 88.3 MB
Events in quadrant A2,879,119616,465
Events in quadrant B3,078,725625,399
Events in quadrant C3,121,957622,910
Events in quadrant D7,140,526517,609

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124342
B0129411
C0128651
D0254391

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6007631.048776%
B6007991.648077%
C6007751.248543%
D6007122320.359580%

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 7233 6009 0 0 0.00% 0.00%
B 7233 6009 6 6 0.08% 0.10%
C 7233 6009 0 0 0.00% 0.00%
D 7233 6009 1260 1260 17.42% 20.97%

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 0 226 6574 38.54 748 734 151.5
A 12 194 5532 31.66 748 734 151.5
A 3 137 5009 28.21 748 734 151.5
B 4 173 156316 1099.39 748 730 141.5
B 12 111 16671 112.64 748 730 141.5
B 11 111 14473 97.11 748 730 141.5
C 3 233 180225 1047.95 744 748 171.3
C 7 247 41687 239.04 744 748 171.3
C 13 61 5197 25.98 744 748 171.3
D 1 255 3803368 22660.4 696 678 167.8
D 7 223 658080 3917.49 696 678 167.8
D 2 33 28852 167.89 696 678 167.8

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