ASTROSAT CZTI

Data Quality Report

Orbit 03773

Creation date: 2024-06-27T14:33:29.639129
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_248T01_9000000486_03773cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03773cztM0_level2_quad_clean.evt
Size (bytes)463,216,32071,683,200
Size441.8 MB 68.4 MB
Events in quadrant A3,782,641423,492
Events in quadrant B3,527,983428,940
Events in quadrant C3,068,548424,191
Events in quadrant D3,178,608411,234

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160593
B0151112
C0140562
D0145892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69291381.991629%
B6929460.663876%
C6929140.202049%
D6929380.548420%

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 8929 6931 70 70 0.78% 1.01%
B 8929 6930 2 2 0.02% 0.03%
C 8929 6931 0 0 0.00% 0.00%
D 8929 6931 21 21 0.24% 0.30%

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 0 118 282157 1701.35 799 782 165.4
A 13 251 183187 1102.92 799 782 165.4
A 0 50 115777 695.32 799 782 165.4
B 15 204 271079 1698.58 816 796 159.1
B 4 81 37472 230.49 816 796 159.1
B 5 200 16584 99.22 816 796 159.1
C 13 61 6618 31.79 783 786 183.4
C 9 144 2878 11.4 783 786 183.4
C 12 4 2705 10.46 783 786 183.4
D 13 223 72329 379.65 776 756 188.5
D 1 20 47666 248.83 776 756 188.5
D 13 239 43140 224.82 776 756 188.5

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
Veto Counter