ASTROSAT CZTI

Data Quality Report

Orbit 11526

Creation date: 2024-06-27T16:14:15.899981
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/AS1A04_022T05_9000001690_11526cztM0_level2.evt modeM0/AS1A04_022T05_9000001690_11526cztM0_level2_quad_clean.evt
Size (bytes)698,472,000109,785,600
Size666.1 MB 104.7 MB
Events in quadrant A6,906,749642,431
Events in quadrant B5,625,170686,113
Events in quadrant C3,629,469748,560
Events in quadrant D4,460,035700,748

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259593
B0220542
C0163332
D0187122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7861109513.929526%
B78615486.971123%
C7861240.305305%
D78611361.730060%

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 8507 7864 557 557 6.55% 7.08%
B 8507 7864 254 254 2.99% 3.23%
C 8507 7864 0 0 0.00% 0.00%
D 8507 7864 90 90 1.06% 1.14%

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 8 5 3183204 17703.55 875 854 179.8
A 9 143 130446 720.93 875 854 179.8
A 1 162 75944 417.73 875 854 179.8
B 4 239 1494998 8487.61 916 892 176.0
B 0 219 185295 1047.54 916 892 176.0
B 11 51 167131 944.36 916 892 176.0
C 13 61 7044 27.96 930 936 218.5
C 12 4 4010 14.07 930 936 218.5
C 3 202 2199 5.78 930 936 218.5
D 1 52 307145 1374.61 921 894 222.8
D 13 152 286212 1280.66 921 894 222.8
D 2 120 162136 723.74 921 894 222.8

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