ASTROSAT CZTI

Data Quality Report

Orbit 46188

Creation date: 2024-06-27T23:20:09.699711
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_093T40_9000006182_46188cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46188cztM0_level2_quad_clean.evt
Size (bytes)560,894,400117,711,360
Size534.9 MB 112.3 MB
Events in quadrant A6,587,514787,239
Events in quadrant B3,935,802823,826
Events in quadrant C3,304,074782,442
Events in quadrant D6,355,477651,035

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245822
B0166612
C0154862
D0240812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74713504.684781%
B74711652.208540%
C7471690.923571%
D747186811.618257%

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 7472 6 6 0.08% 0.08%
B 7806 7472 19 19 0.24% 0.25%
C 7806 7472 2 2 0.03% 0.03%
D 7806 7472 619 619 7.93% 8.28%

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 3256615 19083.43 824 805 170.6
A 9 191 66869 387.22 824 805 170.6
A 13 248 45624 262.7 824 805 170.6
B 3 112 456058 2793.3 831 804 163.0
B 5 172 75029 455.42 831 804 163.0
B 4 171 33475 200.46 831 804 163.0
C 12 2 71204 369.71 814 815 190.4
C 14 254 24177 122.71 814 815 190.4
C 3 233 17916 89.82 814 815 190.4
D 1 52 2372215 12419.85 771 746 190.9
D 2 37 396044 2070.25 771 746 190.9
D 13 249 269299 1406.47 771 746 190.9

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