ASTROSAT CZTI

Data Quality Report

Orbit 10380

Creation date: 2024-06-27T15:58:39.534314
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/AS1A03_073T01_9000001498_10380cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10380cztM0_level2_quad_clean.evt
Size (bytes)479,234,88094,576,320
Size457.0 MB 90.2 MB
Events in quadrant A3,140,163605,488
Events in quadrant B3,561,199608,112
Events in quadrant C3,155,116611,408
Events in quadrant D4,207,564577,717

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136021
B0146660
C0137590
D0168210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66271041.569338%
B66271432.157839%
C6627791.192093%
D66271221.840954%

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 7562 6627 0 0 0.00% 0.00%
B 7562 6627 26 26 0.34% 0.39%
C 7562 6627 1 1 0.01% 0.02%
D 7562 6627 26 26 0.34% 0.39%

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 0 226 7395 40.48 813 797 163.0
A 12 194 6911 37.51 813 797 163.0
A 13 251 4588 23.26 813 797 163.0
B 4 239 190061 1230.5 809 788 153.8
B 11 51 101839 656.95 809 788 153.8
B 0 214 79868 514.11 809 788 153.8
C 15 48 48182 260.82 792 795 181.7
C 14 234 17443 91.63 792 795 181.7
C 13 61 5952 28.38 792 795 181.7
D 8 195 598250 3198.88 786 765 186.8
D 1 20 266058 1420.36 786 765 186.8
D 2 33 183167 976.57 786 765 186.8

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