ASTROSAT CZTI

Data Quality Report

Orbit 03511

Creation date: 2024-06-27T14:30:20.242152
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_045T01_9000000468_03511cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03511cztM0_level2_quad_clean.evt
Size (bytes)1,167,500,160190,152,000
Size1.1 GB 181.3 MB
Events in quadrant A8,458,1461,136,780
Events in quadrant B8,981,7071,133,910
Events in quadrant C8,441,0511,123,962
Events in quadrant D8,230,2551,095,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0383614
B0387585
C0384433
D0387093

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A184122651.439279%
B184112561.390473%
C184121840.999348%
D184122541.379535%

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 20117 18413 19 19 0.09% 0.10%
B 20117 18413 13 13 0.06% 0.07%
C 20117 18413 22 22 0.11% 0.12%
D 20117 18413 77 77 0.38% 0.42%

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 0 50 229612 541.9 2059 2014 420.0
A 8 15 137999 323.77 2059 2014 420.0
A 0 118 82754 192.24 2059 2014 420.0
B 15 204 649716 1591.2 2091 2036 407.0
B 15 85 68256 162.69 2091 2036 407.0
B 14 167 44116 103.38 2091 2036 407.0
C 1 192 441966 940.26 2010 2020 467.9
C 15 208 58251 120.18 2010 2020 467.9
C 8 128 28190 55.93 2010 2020 467.9
D 2 37 281648 580.67 1997 1936 481.7
D 13 239 133455 273.03 1997 1936 481.7
D 5 233 70124 141.55 1997 1936 481.7

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