ASTROSAT CZTI

Data Quality Report

Orbit 45710

Creation date: 2024-06-27T23:15:17.812242
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_028T01_9000006122_45710cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45710cztM0_level2_quad_clean.evt
Size (bytes)591,419,520127,512,000
Size564.0 MB 121.6 MB
Events in quadrant A7,054,178826,463
Events in quadrant B5,053,031856,739
Events in quadrant C4,872,373849,321
Events in quadrant D4,300,977779,208

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262892
B0202792
C0199132
D0182882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78964575.787741%
B78973965.014562%
C78961692.140324%
D78961672.114995%

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 8546 7897 0 0 0.00% 0.00%
B 8547 7897 67 67 0.78% 0.85%
C 8546 7896 47 47 0.55% 0.60%
D 8546 7897 83 83 0.97% 1.05%

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 3410051 17428.1 928 906 195.6
A 14 235 17891 86.83 928 906 195.6
A 0 243 12602 59.79 928 906 195.6
B 3 112 799964 4340.38 924 894 184.1
B 5 172 257854 1395.75 924 894 184.1
B 0 183 72852 390.86 924 894 184.1
C 9 54 939070 4356.27 909 913 215.4
C 14 254 147553 680.91 909 913 215.4
C 12 2 89314 410.48 909 913 215.4
D 2 249 212134 922.57 912 881 229.0
D 13 249 201378 875.6 912 881 229.0
D 5 171 140728 610.73 912 881 229.0

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