ASTROSAT CZTI

Data Quality Report

Orbit 19043

Creation date: 2024-06-27T17:58:25.648396
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/AS1A05_046T01_9000002834_19043cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19043cztM0_level2_quad_clean.evt
Size (bytes)2,028,761,280342,123,840
Size1.9 GB 326.3 MB
Events in quadrant A13,188,5032,133,797
Events in quadrant B14,520,0682,160,699
Events in quadrant C13,857,3132,096,799
Events in quadrant D17,974,6592,035,394

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05720
B05720
C05720
D05720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0578845
B0613695
C0583475
D0724865

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A281533461.228999%
B281534621.641033%
C281534201.491848%
D2815214255.061807%

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 32206 28159 7 7 0.02% 0.02%
B 32206 28159 58 58 0.18% 0.21%
C 32206 28159 3 3 0.01% 0.01%
D 32205 28158 916 916 2.84% 3.25%

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 9 143 55682 76.25 3397 3322 686.7
A 8 144 54432 74.43 3397 3322 686.7
A 13 254 33041 43.28 3397 3322 686.7
B 7 220 444668 675.97 3398 3310 652.9
B 3 112 326685 495.27 3398 3310 652.9
B 0 189 159532 239.26 3398 3310 652.9
C 14 238 503937 648.63 3282 3307 771.8
C 3 233 372069 477.78 3282 3307 771.8
C 9 15 194690 247.96 3282 3307 771.8
D 7 238 5279334 6644.32 3256 3162 794.1
D 2 234 131781 161.97 3256 3162 794.1
D 11 176 123489 151.53 3256 3162 794.1

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