ASTROSAT CZTI

Data Quality Report

Orbit 46212

Creation date: 2024-06-27T23:20:25.926611
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_093T12_9000006184_46212cztM0_level2.fits modeM0/AS1A13_093T12_9000006184_46212cztM0_level2_quad_clean.evt
Size (bytes)552,196,800113,777,280
Size526.6 MB 108.5 MB
Events in quadrant A6,449,091758,217
Events in quadrant B4,398,488789,123
Events in quadrant C3,562,473765,350
Events in quadrant D5,513,564667,457

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236602
B0175822
C0151242
D0209102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66683555.323935%
B66693044.558405%
C66691712.564103%
D66695878.801919%

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 7783 6668 26 26 0.33% 0.39%
B 7784 6669 129 129 1.66% 1.93%
C 7784 6669 73 73 0.94% 1.09%
D 7784 6669 420 420 5.40% 6.30%

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 10 83 3164917 19604.16 783 766 161.4
A 13 248 97453 599.04 783 766 161.4
A 9 191 74668 457.88 783 766 161.4
B 3 112 836716 5490.94 781 757 152.2
B 5 255 236642 1549.4 781 757 152.2
B 5 172 123398 805.56 781 757 152.2
C 12 2 218842 1210.33 776 783 180.2
C 14 254 135903 749.98 776 783 180.2
C 10 218 60101 329.24 776 783 180.2
D 1 52 1370339 7355.04 759 738 186.2
D 5 235 484768 2599.34 759 738 186.2
D 8 128 195838 1047.73 759 738 186.2

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