ASTROSAT CZTI

Data Quality Report

Orbit 04329

Creation date: 2024-06-27T14:40:27.934321
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_219T01_9000000540_04329cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04329cztM0_level2_quad_clean.evt
Size (bytes)619,165,44078,710,400
Size590.5 MB 75.1 MB
Events in quadrant A3,226,343507,721
Events in quadrant B8,706,052445,519
Events in quadrant C3,124,406492,987
Events in quadrant D3,253,617482,321

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139172
B0305871
C0139011
D0142471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65181362.086530%
B6518107916.554158%
C65181261.933108%
D65181211.856398%

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 7638 6518 7 7 0.09% 0.11%
B 7638 6518 788 788 10.32% 12.09%
C 7638 6518 23 23 0.30% 0.35%
D 7638 6518 22 22 0.29% 0.34%

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 78519 478.74 793 776 162.4
A 15 234 48150 291.73 793 776 162.4
A 0 247 18355 108.25 793 776 162.4
B 3 0 5318028 37012.75 750 733 143.7
B 15 204 216123 1499.29 750 733 143.7
B 8 3 102223 706.45 750 733 143.7
C 9 247 136762 760.03 759 764 178.9
C 9 16 19671 105.66 759 764 178.9
C 13 61 6335 31.13 759 764 178.9
D 2 136 84733 453.37 769 750 185.2
D 13 53 72817 389.05 769 750 185.2
D 10 172 60561 322.88 769 750 185.2

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