ASTROSAT CZTI

Data Quality Report

Orbit 44708

Creation date: 2024-06-27T23:05:29.306179
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/AS1A13_077T01_9000006014_44708cztM0_level2.fits modeM0/AS1A13_077T01_9000006014_44708cztM0_level2_quad_clean.evt
Size (bytes)553,389,120112,489,920
Size527.8 MB 107.3 MB
Events in quadrant A5,235,649758,734
Events in quadrant B4,320,863773,668
Events in quadrant C3,103,281755,910
Events in quadrant D7,287,732635,507

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214322
B0175632
C0142992
D0264552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69262213.190875%
B69263424.937915%
C6926480.693041%
D692686512.489171%

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 7806 6927 9 9 0.12% 0.13%
B 7806 6927 158 158 2.02% 2.28%
C 7806 6927 2 2 0.03% 0.03%
D 7806 6927 763 763 9.77% 11.01%

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 10 83 2102541 12620.81 798 780 166.5
A 13 31 20016 115.51 798 780 166.5
A 15 174 14140 80.23 798 780 166.5
B 5 255 508634 3234.14 788 765 157.0
B 5 172 201462 1278.05 788 765 157.0
B 0 189 190058 1205.43 788 765 157.0
C 14 254 18520 95.47 785 790 185.7
C 0 207 10138 50.33 785 790 185.7
C 3 233 9359 46.14 785 790 185.7
D 1 52 2102242 11168.06 748 724 188.2
D 11 241 866135 4599.04 748 724 188.2
D 3 13 362176 1920.86 748 724 188.2

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