ASTROSAT CZTI

Data Quality Report

Orbit 31192

Creation date: 2024-06-27T20:24:47.407293
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/AS1A10_082T10_9000004512_31192cztM0_level2.evt modeM0/AS1A10_082T10_9000004512_31192cztM0_level2_quad_clean.evt
Size (bytes)615,303,36093,473,280
Size586.8 MB 89.1 MB
Events in quadrant A3,282,649620,090
Events in quadrant B5,435,015608,707
Events in quadrant C3,515,858580,709
Events in quadrant D5,973,378579,239

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136061
B0203541
C0141721
D0225541

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6328811.280025%
B63292313.649866%
C63291682.654448%
D63291492.354242%

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 7533 6329 0 0 0.00% 0.00%
B 7534 6330 48 48 0.64% 0.76%
C 7534 6330 31 31 0.41% 0.49%
D 7534 6330 46 46 0.61% 0.73%

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 13 254 11767 65.77 849 837 166.2
A 3 137 7916 42.6 849 837 166.2
A 0 226 7254 38.61 849 837 166.2
B 6 159 1704905 11029.52 822 804 154.5
B 4 80 189273 1219.84 822 804 154.5
B 0 190 132631 853.23 822 804 154.5
C 0 10 182669 1005.24 790 796 180.9
C 14 238 133138 731.47 790 796 180.9
C 10 22 86837 475.56 790 796 180.9
D 8 195 2806455 13561.32 809 794 206.9
D 2 250 42170 199.99 809 794 206.9
D 2 234 23161 108.11 809 794 206.9

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