ASTROSAT CZTI

Data Quality Report

Orbit 14325

Creation date: 2024-06-27T16:53:32.386443
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/AS1G08_078T01_9000002110_14325cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14325cztM0_level2_quad_clean.evt
Size (bytes)490,711,68093,625,920
Size468.0 MB 89.3 MB
Events in quadrant A3,197,889601,320
Events in quadrant B3,901,315608,665
Events in quadrant C3,415,896597,426
Events in quadrant D3,906,635576,269

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135243
B0159282
C0139722
D0161222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6479220.339559%
B64791832.824510%
C6479170.262386%
D64791462.253434%

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 7580 6481 0 0 0.00% 0.00%
B 7580 6481 93 93 1.23% 1.43%
C 7580 6481 0 0 0.00% 0.00%
D 7580 6481 114 114 1.50% 1.76%

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 12 189 105666 661.69 784 769 158.5
A 8 15 68237 425.59 784 769 158.5
A 1 162 6924 38.82 784 769 158.5
B 10 245 699647 4681.44 783 764 149.3
B 0 219 65948 436.63 783 764 149.3
B 4 48 36771 241.19 783 764 149.3
C 3 233 417751 2334.18 768 774 178.6
C 13 61 5500 26.46 768 774 178.6
C 10 22 2793 11.3 768 774 178.6
D 5 222 638848 3579.44 754 737 178.3
D 13 122 170535 952.47 754 737 178.3
D 2 120 108616 605.14 754 737 178.3

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