ASTROSAT CZTI

Data Quality Report

Orbit 17379

Creation date: 2024-06-27T17:35:45.975111
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/AS1T03_033T01_9000002568_17379cztM0_level2.evt modeM0/AS1T03_033T01_9000002568_17379cztM0_level2_quad_clean.evt
Size (bytes)541,612,80083,721,600
Size516.5 MB 79.8 MB
Events in quadrant A2,995,228545,673
Events in quadrant B3,013,525557,946
Events in quadrant C3,041,846534,599
Events in quadrant D6,925,485457,847

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128141
B0128391
C0128951
D0248711

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6296400.635324%
B6296420.667090%
C6296520.825921%
D6297129320.533587%

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 7351 6296 0 0 0.00% 0.00%
B 7351 6296 0 0 0.00% 0.00%
C 7351 6297 1 1 0.01% 0.02%
D 7352 6297 1060 1060 14.42% 16.83%

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 6759 38.05 777 759 157.7
A 13 210 6189 34.43 777 759 157.7
A 3 137 5708 31.38 777 759 157.7
B 12 111 17796 115.68 768 750 147.4
B 11 111 15948 103.14 768 750 147.4
B 14 111 13541 86.8 768 750 147.4
C 14 238 113457 649.91 741 744 173.4
C 9 54 30417 171.1 741 744 173.4
C 3 233 6712 34.41 741 744 173.4
D 1 52 3318570 21221.93 646 631 156.3
D 11 176 745628 4765.09 646 631 156.3
D 13 232 282987 1805.98 646 631 156.3

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