ASTROSAT CZTI

Data Quality Report

Orbit 31423

Creation date: 2024-06-27T20:28:07.934536
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_094T30_9000004566_31423cztM0_level2.evt modeM0/AS1A10_094T30_9000004566_31423cztM0_level2_quad_clean.evt
Size (bytes)542,355,840137,298,240
Size517.2 MB 130.9 MB
Events in quadrant A3,156,817943,005
Events in quadrant B5,137,187943,848
Events in quadrant C3,468,813923,696
Events in quadrant D4,230,392902,808

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133942
B0197512
C0142952
D0168654

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6382150.235036%
B6382931.457223%
C63821392.178001%
D6381691.081335%

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 7588 6383 0 0 0.00% 0.00%
B 7588 6383 2 2 0.03% 0.03%
C 7588 6383 17 17 0.22% 0.27%
D 7587 6382 47 47 0.62% 0.74%

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 11292 64.94 818 805 161.5
A 3 137 7819 43.43 818 805 161.5
A 0 226 6782 37.01 818 805 161.5
B 6 159 1751660 11563.03 810 789 151.4
B 4 80 170608 1121.51 810 789 151.4
B 0 190 30939 199.11 810 789 151.4
C 10 22 186191 1011.18 797 804 183.3
C 14 238 137615 746.23 797 804 183.3
C 3 233 16476 85.48 797 804 183.3
D 8 195 803701 4233.29 799 777 189.7
D 12 218 139784 732.89 799 777 189.7
D 1 52 75560 394.28 799 777 189.7

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