ASTROSAT CZTI

Data Quality Report

Orbit 03663

Creation date: 2024-06-27T14:32:08.310035
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_191T01_9000000476_03663cztM0_level2.evt modeM0/AS1G05_191T01_9000000476_03663cztM0_level2_quad_clean.evt
Size (bytes)520,053,12066,222,720
Size496.0 MB 63.2 MB
Events in quadrant A3,392,811392,813
Events in quadrant B3,586,247389,737
Events in quadrant C3,220,612385,386
Events in quadrant D5,097,981372,573

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142023
B0147132
C0138902
D0194942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66611432.146825%
B66611742.612220%
C66611271.906621%
D66614276.410449%

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 7791 6661 3 3 0.04% 0.05%
B 7791 6662 8 8 0.10% 0.12%
C 7791 6662 0 0 0.00% 0.00%
D 7791 6662 275 275 3.53% 4.13%

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 13 164 42101 241.45 845 828 170.9
A 0 50 40804 233.86 845 828 170.9
A 3 1 22454 126.51 845 828 170.9
B 15 204 130115 790.88 848 828 163.5
B 5 70 31796 189.44 848 828 163.5
B 0 182 28127 166.99 848 828 163.5
C 9 247 26822 137.98 815 821 188.4
C 13 61 7045 33.03 815 821 188.4
C 7 220 4255 18.22 815 821 188.4
D 13 172 1693299 8802.88 807 787 192.3
D 13 223 182986 947.63 807 787 192.3
D 12 110 61071 313.54 807 787 192.3

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
Veto Counter