ASTROSAT CZTI

Data Quality Report

Orbit 13013

Creation date: 2024-06-27T16:35:05.048663
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/AS1T02_002T01_9000001914_13013cztM0_level2.evt modeM0/AS1T02_002T01_9000001914_13013cztM0_level2_quad_clean.evt
Size (bytes)537,883,200122,598,720
Size513.0 MB 116.9 MB
Events in quadrant A3,405,812862,616
Events in quadrant B5,368,466746,535
Events in quadrant C2,907,531855,078
Events in quadrant D4,177,524805,917

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141033
B0200872
C0130492
D0167182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63521081.700252%
B6352128420.214106%
C6352310.488035%
D63522554.014484%

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 7663 6354 37 37 0.48% 0.58%
B 7663 6354 692 692 9.03% 10.89%
C 7663 6354 6 6 0.08% 0.09%
D 7663 6354 162 162 2.11% 2.55%

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 15 223 184254 1202.69 767 752 152.6
A 15 239 76977 499.59 767 752 152.6
A 12 189 70817 459.21 767 752 152.6
B 4 239 2322460 18931.74 659 644 122.6
B 3 64 231668 1883.73 659 644 122.6
B 0 85 132631 1076.2 659 644 122.6
C 14 234 39150 230.68 734 738 166.5
C 13 61 5389 27.93 734 738 166.5
C 12 4 5111 26.26 734 738 166.5
D 1 52 1243060 7299.53 725 703 170.2
D 2 14 103848 606.03 725 703 170.2
D 8 195 61723 358.53 725 703 170.2

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