ASTROSAT CZTI

Data Quality Report

Orbit 29222

Creation date: 2024-06-27T20:01:40.939777
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_102T02_9000004200_29222cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29222cztM0_level2_quad_clean.evt
Size (bytes)467,832,960110,016,000
Size446.2 MB 104.9 MB
Events in quadrant A3,113,758738,120
Events in quadrant B3,337,710741,336
Events in quadrant C3,308,605706,152
Events in quadrant D3,968,820695,084

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132581
B0139141
C0136261
D0159211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6468270.417440%
B6468640.989487%
C6468771.190476%
D6468931.437848%

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 7568 6469 0 0 0.00% 0.00%
B 7568 6469 19 19 0.25% 0.29%
C 7568 6469 0 0 0.00% 0.00%
D 7568 6469 71 71 0.94% 1.10%

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 11896 69.33 805 789 160.2
A 3 137 7765 43.54 805 789 160.2
A 0 13 6722 37.03 805 789 160.2
B 0 229 130772 875.61 787 769 148.5
B 0 183 60971 405.48 787 769 148.5
B 0 190 33571 220.93 787 769 148.5
C 3 233 192360 1099.78 755 757 174.2
C 14 238 137768 786.43 755 757 174.2
C 14 254 19819 109.41 755 757 174.2
D 1 52 713688 3932.6 767 748 181.3
D 8 195 125338 687.24 767 748 181.3
D 13 153 65444 356.87 767 748 181.3

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