ASTROSAT CZTI

Data Quality Report

Orbit 03442

Creation date: 2024-06-27T14:29:03.832533
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_167T01_9000000456_03442cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03442cztM0_level2_quad_clean.evt
Size (bytes)490,167,36063,777,600
Size467.5 MB 60.8 MB
Events in quadrant A3,202,317382,131
Events in quadrant B3,459,594376,782
Events in quadrant C4,693,512360,633
Events in quadrant D3,054,276364,226

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137753
B0145992
C0182022
D0135362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6407771.201811%
B6407781.217418%
C64075117.975652%
D6408761.186017%

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 7552 6407 7 7 0.09% 0.11%
B 7552 6408 1 1 0.01% 0.02%
C 7552 6408 344 344 4.56% 5.37%
D 7553 6408 16 16 0.21% 0.25%

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 14 249 78405 474.87 793 778 163.5
A 0 149 37614 225.34 793 778 163.5
A 3 1 19410 113.98 793 778 163.5
B 15 204 279499 1797.5 800 784 155.1
B 0 228 17147 105.53 800 784 155.1
B 4 200 16152 99.11 800 784 155.1
C 1 192 1117791 6506.4 749 757 171.7
C 7 220 629695 3663.38 749 757 171.7
C 15 208 10966 59.46 749 757 171.7
D 13 223 81556 433.22 768 746 186.5
D 5 233 27015 140.83 768 746 186.5
D 2 37 15706 80.2 768 746 186.5

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