ASTROSAT CZTI

Data Quality Report

Orbit 32747

Creation date: 2024-06-27T20:41:34.042437
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_057T04_9000004728_32747cztM0_level2.evt modeM0/AS1A10_057T04_9000004728_32747cztM0_level2_quad_clean.evt
Size (bytes)495,048,96058,536,000
Size472.1 MB 55.8 MB
Events in quadrant A3,043,099347,964
Events in quadrant B3,394,858347,795
Events in quadrant C2,778,341349,443
Events in quadrant D5,386,998325,594

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125743
B0136682
C0120582
D0199192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5742751.306165%
B5742821.428074%
C5742380.661790%
D57425239.108325%

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 7175 5743 51 51 0.71% 0.89%
B 7175 5743 50 50 0.70% 0.87%
C 7175 5743 24 24 0.33% 0.42%
D 7175 5743 437 437 6.09% 7.61%

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 15 249 424406 3155.83 667 653 134.3
A 15 237 12918 91.34 667 653 134.3
A 13 254 10465 73.07 667 653 134.3
B 12 1 272202 2117.93 668 653 128.2
B 3 26 113065 876.75 668 653 128.2
B 0 219 107430 832.8 668 653 128.2
C 0 10 101651 674.88 647 650 149.7
C 8 229 82779 548.78 647 650 149.7
C 8 79 24559 159.76 647 650 149.7
D 3 13 680910 4395.58 628 612 154.8
D 8 195 525381 3390.66 628 612 154.8
D 2 250 354541 2286.82 628 612 154.8

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