ASTROSAT CZTI

Data Quality Report

Orbit 15062

Creation date: 2024-06-27T17:03:13.475308
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_060T01_9000002216_15062cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15062cztM0_level2_quad_clean.evt
Size (bytes)469,480,32097,580,160
Size447.7 MB 93.1 MB
Events in quadrant A3,456,614627,500
Events in quadrant B3,377,022639,761
Events in quadrant C3,691,060618,571
Events in quadrant D3,232,734596,616

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146193
B0144252
C0152272
D0143242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6781640.943814%
B6781871.282997%
C6781620.914319%
D6781640.943814%

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 7682 6782 0 0 0.00% 0.00%
B 7682 6782 3 3 0.04% 0.04%
C 7682 6782 0 0 0.00% 0.00%
D 7682 6782 15 15 0.20% 0.22%

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 1 162 110193 648.77 832 815 168.6
A 1 178 48760 284.38 832 815 168.6
A 1 161 43654 254.1 832 815 168.6
B 3 64 56469 344.41 831 809 161.6
B 4 173 37561 227.41 831 809 161.6
B 12 111 19380 114.91 831 809 161.6
C 3 233 517326 2726.34 813 817 189.5
C 13 61 5607 25.28 813 817 189.5
C 3 232 3342 13.33 813 817 189.5
D 13 249 94825 477.34 812 789 197.0
D 2 234 22976 112.62 812 789 197.0
D 13 104 20231 98.69 812 789 197.0

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