ASTROSAT CZTI

Data Quality Report

Orbit 22040

Creation date: 2024-06-27T18:35:42.455605
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/AS1A07_134T01_9000003256_22040cztM0_level2.evt modeM0/AS1A07_134T01_9000003256_22040cztM0_level2_quad_clean.evt
Size (bytes)515,672,64066,479,040
Size491.8 MB 63.4 MB
Events in quadrant A3,214,671396,791
Events in quadrant B3,810,430394,706
Events in quadrant C3,446,365386,710
Events in quadrant D4,695,176371,401

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136792
B0154012
C0143552
D0182142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6649260.391036%
B66492063.098210%
C6649971.458866%
D66493014.526997%

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 7679 6649 0 0 0.00% 0.00%
B 7679 6649 154 154 2.01% 2.32%
C 7679 6649 18 18 0.23% 0.27%
D 7679 6649 254 254 3.31% 3.82%

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 9831 53.85 833 816 167.4
A 3 137 7191 38.08 833 816 167.4
A 0 226 6946 36.62 833 816 167.4
B 3 64 504063 3198.43 826 803 157.3
B 0 230 32203 199.56 826 803 157.3
B 0 197 24817 152.62 826 803 157.3
C 10 22 178980 943.82 804 811 188.8
C 14 238 128874 678.39 804 811 188.8
C 13 61 5611 25.43 804 811 188.8
D 11 176 1316535 6783.47 800 778 194.0
D 1 52 275804 1417.91 800 778 194.0
D 2 136 44823 227.08 800 778 194.0

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