ASTROSAT CZTI

Data Quality Report

Orbit 08165

Creation date: 2024-06-27T15:28:49.553888
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/AS1G07_043T01_9000001126_08165cztM0_level2.evt modeM0/AS1G07_043T01_9000001126_08165cztM0_level2_quad_clean.evt
Size (bytes)453,116,16069,264,000
Size432.1 MB 66.1 MB
Events in quadrant A3,074,195408,943
Events in quadrant B3,208,550412,641
Events in quadrant C3,849,013419,437
Events in quadrant D3,151,277404,893

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133923
B0136452
C0158122
D0137352

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6466460.711414%
B6466691.067120%
C64661261.948655%
D6466691.067120%

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 7556 6467 0 0 0.00% 0.00%
B 7556 6467 6 6 0.08% 0.09%
C 7556 6467 5 5 0.07% 0.08%
D 7556 6467 16 16 0.21% 0.25%

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 79 12614 73.02 793 776 162.1
A 0 226 7548 41.77 793 776 162.1
A 12 194 7365 40.64 793 776 162.1
B 10 16 52994 346.45 797 780 150.7
B 0 219 14946 93.99 797 780 150.7
B 12 111 14880 93.56 797 780 150.7
C 1 16 814769 4538.24 778 783 179.4
C 13 61 5874 28.38 778 783 179.4
C 14 67 2678 10.57 778 783 179.4
D 5 233 72881 377.48 781 759 191.1
D 7 71 52254 269.52 781 759 191.1
D 2 234 24251 122.96 781 759 191.1

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