ASTROSAT CZTI

Data Quality Report

Orbit 03601

Creation date: 2024-06-27T14:31:28.353284
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_246T04_9000000472_03601cztM0_level2.evt modeM0/AS1G05_246T04_9000000472_03601cztM0_level2_quad_clean.evt
Size (bytes)506,744,64074,404,800
Size483.3 MB 71.0 MB
Events in quadrant A4,500,473448,182
Events in quadrant B3,635,582453,179
Events in quadrant C3,555,692445,137
Events in quadrant D3,192,987431,786

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181393
B0149972
C0151472
D0143932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68121782.613036%
B6812851.247798%
C68121131.658837%
D6812851.247798%

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 7882 6813 43 43 0.55% 0.63%
B 7882 6813 0 0 0.00% 0.00%
C 7882 6813 29 29 0.37% 0.43%
D 7882 6813 26 26 0.33% 0.38%

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 15 1242734 7442.7 808 789 166.9
A 0 50 125526 747.52 808 789 166.9
A 13 164 22521 130.24 808 789 166.9
B 15 204 406054 2555.58 817 796 158.6
B 0 219 16971 102.0 817 796 158.6
B 0 182 13630 80.93 817 796 158.6
C 2 53 302287 1676.77 776 778 179.8
C 9 247 197317 1093.0 776 778 179.8
C 1 16 12707 66.34 776 778 179.8
D 13 223 107967 569.13 779 755 188.4
D 3 12 44979 234.76 779 755 188.4
D 14 34 24708 127.15 779 755 188.4

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
Veto Counter