ASTROSAT CZTI

Data Quality Report

Orbit 05582

Creation date: 2024-06-27T14:56:53.482860
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/AS1A02_081T01_9000000720_05582cztM0_level2.evt modeM0/AS1A02_081T01_9000000720_05582cztM0_level2_quad_clean.evt
Size (bytes)443,295,36062,285,760
Size422.8 MB 59.4 MB
Events in quadrant A3,105,716367,226
Events in quadrant B3,442,990365,755
Events in quadrant C3,024,975350,612
Events in quadrant D3,393,757332,776

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137173
B0144882
C0137137
D0145074

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6736851.261876%
B67361031.529097%
C6733670.995099%
D6735811.202673%

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 7716 6736 1 1 0.01% 0.01%
B 7716 6737 8 8 0.10% 0.12%
C 7716 6736 0 0 0.00% 0.00%
D 7716 6736 10 10 0.13% 0.15%

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 13 251 14892 85.88 799 781 164.3
A 13 14 10252 57.64 799 781 164.3
A 13 6 9415 52.55 799 781 164.3
B 15 204 177077 1132.44 806 788 155.7
B 11 51 47344 299.07 806 788 155.7
B 0 214 41142 259.23 806 788 155.7
C 1 16 13887 73.39 769 772 178.7
C 13 61 6180 30.26 769 772 178.7
C 8 128 5230 24.95 769 772 178.7
D 11 241 192617 1025.16 766 744 187.2
D 12 233 79298 419.71 766 744 187.2
D 2 152 65617 346.61 766 744 187.2

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