ASTROSAT CZTI

Data Quality Report

Orbit 05443

Creation date: 2024-06-27T14:55:15.782977
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/AS1G05_204T01_9000000688_05443cztM0_level2.evt modeM0/AS1G05_204T01_9000000688_05443cztM0_level2_quad_clean.evt
Size (bytes)525,049,920107,222,400
Size500.7 MB 102.3 MB
Events in quadrant A2,967,013710,815
Events in quadrant B3,691,120717,882
Events in quadrant C3,090,400727,879
Events in quadrant D5,721,947647,546

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133352
B0154591
C0136501
D0214611

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01282
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6352831.306675%
B63521322.078086%
C6352851.338161%
D635290614.263224%

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 7607 6353 11 11 0.14% 0.17%
B 7607 6353 17 17 0.22% 0.27%
C 7607 6353 2 2 0.03% 0.03%
D 7607 6353 665 665 8.74% 10.47%

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 0 50 80202 524.95 744 727 151.4
A 13 6 18158 115.14 744 727 151.4
A 12 194 7634 45.62 744 727 151.4
B 15 204 331753 2315.79 758 741 142.9
B 0 219 203803 1420.64 758 741 142.9
B 4 48 93625 649.83 758 741 142.9
C 9 247 78055 457.14 741 745 169.1
C 14 67 61144 357.14 741 745 169.1
C 1 16 52681 307.1 741 745 169.1
D 2 152 1700638 10002.1 697 674 170.0
D 2 33 1053829 6196.46 697 674 170.0
D 8 195 180186 1056.2 697 674 170.0

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