ASTROSAT CZTI

Data Quality Report

Orbit 24192

Creation date: 2024-06-27T19:03:17.776866
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_067T01_9000003578_24192cztM0_level2.evt modeM0/AS1A07_067T01_9000003578_24192cztM0_level2_quad_clean.evt
Size (bytes)609,079,68082,180,800
Size580.9 MB 78.4 MB
Events in quadrant A3,662,033500,683
Events in quadrant B3,679,407508,539
Events in quadrant C4,806,830480,380
Events in quadrant D5,781,741469,058

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157092
B0156942
C0186732
D0221062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76071461.919285%
B76081521.997897%
C76083003.943218%
D76084455.849106%

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 7747 7608 0 0 0.00% 0.00%
B 7748 7609 0 0 0.00% 0.00%
C 7748 7608 80 80 1.03% 1.05%
D 7748 7609 280 280 3.61% 3.68%

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 11018 52.94 946 924 190.7
A 3 1 9457 44.75 946 924 190.7
A 3 137 8582 40.16 946 924 190.7
B 12 111 22376 118.56 935 913 181.0
B 11 111 19806 104.37 935 913 181.0
B 14 111 17108 89.46 935 913 181.0
C 2 16 661558 3156.11 892 894 209.3
C 7 247 518409 2472.26 892 894 209.3
C 14 238 139902 664.07 892 894 209.3
D 7 238 2221851 9980.64 906 877 222.5
D 8 195 119566 533.37 906 877 222.5
D 2 234 31912 139.47 906 877 222.5

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