ASTROSAT CZTI

Data Quality Report

Orbit 09553

Creation date: 2024-06-27T15:47:39.949956
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/AS1G07_069T01_9000001356_09553cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09553cztM0_level2_quad_clean.evt
Size (bytes)494,637,120112,982,400
Size471.7 MB 107.7 MB
Events in quadrant A3,421,104755,302
Events in quadrant B3,585,802748,740
Events in quadrant C3,245,399745,286
Events in quadrant D4,289,328721,975

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141613
B0147992
C0135812
D0172482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64581201.858160%
B64581492.307216%
C6458911.409105%
D64581432.214308%

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 7784 6459 0 0 0.00% 0.00%
B 7784 6459 17 17 0.22% 0.26%
C 7784 6459 7 7 0.09% 0.11%
D 7784 6459 28 28 0.36% 0.43%

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 1 162 73921 428.34 853 833 170.6
A 1 178 21328 120.11 853 833 170.6
A 1 161 21240 119.6 853 833 170.6
B 4 80 115575 737.4 839 821 155.6
B 0 214 100633 641.38 839 821 155.6
B 10 252 58878 373.07 839 821 155.6
C 14 234 21916 113.03 825 832 186.5
C 13 61 6092 28.2 825 832 186.5
C 9 68 5367 24.31 825 832 186.5
D 12 227 426947 2098.53 826 808 203.1
D 1 52 262594 1289.17 826 808 203.1
D 7 71 223015 1094.26 826 808 203.1

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