ASTROSAT CZTI

Data Quality Report

Orbit 30718

Creation date: 2024-06-27T20:18:48.699387
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_071T44_9000004434_30718cztM0_level2.evt modeM0/AS1A10_071T44_9000004434_30718cztM0_level2_quad_clean.evt
Size (bytes)706,472,64095,659,200
Size673.7 MB 91.2 MB
Events in quadrant A3,884,545649,309
Events in quadrant B6,104,960632,472
Events in quadrant C5,140,183591,463
Events in quadrant D5,824,633566,957

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153672
B0224702
C0197492
D0222492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65471872.856270%
B65473815.819459%
C65475668.645181%
D65474777.285780%

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 7632 6547 16 16 0.21% 0.24%
B 7632 6547 126 126 1.65% 1.92%
C 7632 6547 156 156 2.04% 2.38%
D 7632 6547 397 397 5.20% 6.06%

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 8 192 197876 1096.85 909 895 179.6
A 0 13 181691 1006.73 909 895 179.6
A 13 254 12514 64.7 909 895 179.6
B 6 159 1756830 10539.32 878 857 166.6
B 6 36 573603 3437.61 878 857 166.6
B 5 255 265880 1590.66 878 857 166.6
C 3 233 1459212 7482.39 834 841 194.9
C 10 22 246349 1259.62 834 841 194.9
C 14 238 135611 691.46 834 841 194.9
D 8 195 1473902 7405.31 849 830 198.9
D 10 253 808545 4060.48 849 830 198.9
D 13 249 180936 905.41 849 830 198.9

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