ASTROSAT CZTI

Data Quality Report

Orbit 07082

Creation date: 2024-06-27T15:15:22.032574
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/AS1A02_090T01_9000000970_07082cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07082cztM0_level2_quad_clean.evt
Size (bytes)508,498,56095,794,560
Size484.9 MB 91.4 MB
Events in quadrant A3,277,599620,098
Events in quadrant B3,875,446619,882
Events in quadrant C3,189,661619,235
Events in quadrant D4,597,915570,652

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141162
B0158061
C0140721
D0181401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67642313.415139%
B67642904.287404%
C67641331.966292%
D67644967.332939%

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 6869 6765 0 0 0.00% 0.00%
B 6869 6765 40 40 0.58% 0.59%
C 6869 6765 0 0 0.00% 0.00%
D 6869 6765 287 287 4.18% 4.24%

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 8 15 16529 90.71 840 822 173.2
A 13 14 15271 83.44 840 822 173.2
A 3 1 8671 45.33 840 822 173.2
B 0 219 373636 2285.38 839 818 163.1
B 0 214 133097 810.87 839 818 163.1
B 4 239 102371 622.52 839 818 163.1
C 13 61 6435 29.51 813 820 190.3
C 1 3 5789 26.12 813 820 190.3
C 8 128 4845 21.15 813 820 190.3
D 14 34 734419 3637.49 804 779 201.7
D 2 14 247896 1225.24 804 779 201.7
D 1 83 165055 814.5 804 779 201.7

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