ASTROSAT CZTI

Data Quality Report

Orbit 06096

Creation date: 2024-06-27T15:02:42.686859
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/AS1G06_033T01_9000000792_06096cztM0_level2.evt modeM0/AS1G06_033T01_9000000792_06096cztM0_level2_quad_clean.evt
Size (bytes)451,823,04063,020,160
Size430.9 MB 60.1 MB
Events in quadrant A3,474,381365,153
Events in quadrant B3,630,701365,811
Events in quadrant C2,968,250365,359
Events in quadrant D3,161,746351,471

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145992
B0151861
C0135171
D0143471

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6597981.485524%
B65971862.819463%
C6597520.788237%
D6597661.000455%

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 7362 6598 26 26 0.35% 0.39%
B 7362 6598 79 79 1.07% 1.20%
C 7362 6598 0 0 0.00% 0.00%
D 7362 6598 18 18 0.24% 0.27%

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 448309 2791.57 767 749 160.3
A 0 50 66835 412.2 767 749 160.3
A 12 194 7371 41.3 767 749 160.3
B 3 64 469926 3148.81 773 754 149.0
B 15 204 54397 360.02 773 754 149.0
B 4 81 26049 169.77 773 754 149.0
C 1 16 32627 180.5 751 756 176.6
C 9 16 6306 31.43 751 756 176.6
C 13 61 6014 29.78 751 756 176.6
D 13 169 189294 1014.16 747 720 185.9
D 2 33 89895 479.59 747 720 185.9
D 8 195 28436 149.06 747 720 185.9

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