ASTROSAT CZTI

Data Quality Report

Orbit 32862

Creation date: 2024-06-27T20:42:46.401513
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/AS1A11_005T04_9000004742_32862cztM0_level2.evt modeM0/AS1A11_005T04_9000004742_32862cztM0_level2_quad_clean.evt
Size (bytes)484,488,00057,896,640
Size462.0 MB 55.2 MB
Events in quadrant A2,530,674360,292
Events in quadrant B4,092,920323,052
Events in quadrant C2,726,891357,876
Events in quadrant D4,944,958322,288

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111493
B0156162
C0116422
D0185122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A555740.071981%
B555760510.887169%
C5557310.557855%
D55572684.822746%

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 9233 5559 0 0 0.00% 0.00%
B 9233 5559 460 460 4.98% 8.27%
C 9233 5559 22 22 0.24% 0.40%
D 9233 5559 234 234 2.53% 4.21%

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 10110 71.76 653 641 131.9
A 3 137 5851 39.49 653 641 131.9
A 0 226 5622 37.75 653 641 131.9
B 5 172 1489180 12706.68 616 601 117.1
B 0 197 59229 500.46 616 601 117.1
B 0 219 38935 327.22 616 601 117.1
C 1 241 60866 412.36 633 640 146.1
C 0 10 57068 386.36 633 640 146.1
C 3 233 49601 335.23 633 640 146.1
D 8 195 823570 5572.71 614 602 147.7
D 10 203 472144 3193.04 614 602 147.7
D 12 227 406875 2751.07 614 602 147.7

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