ASTROSAT CZTI

Data Quality Report

Orbit 03619

Creation date: 2024-06-27T14:31:41.403322
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_234T02_9000000474_03619cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03619cztM0_level2_quad_clean.evt
Size (bytes)408,303,36080,369,280
Size389.4 MB 76.6 MB
Events in quadrant A2,794,650512,413
Events in quadrant B3,084,502511,245
Events in quadrant C3,241,275503,622
Events in quadrant D2,843,875494,318

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123692
B0130851
C0135911
D0125951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5897751.271833%
B5897450.763100%
C5897971.644904%
D5897741.254875%

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 7177 5898 8 8 0.11% 0.14%
B 7177 5898 3 3 0.04% 0.05%
C 7177 5898 54 54 0.75% 0.92%
D 7177 5898 24 24 0.33% 0.41%

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 94382 673.11 688 673 139.2
A 14 191 13598 92.84 688 673 139.2
A 0 31 12568 85.44 688 673 139.2
B 15 204 129920 972.47 696 680 132.9
B 4 81 97150 725.89 696 680 132.9
B 0 182 43122 319.36 696 680 132.9
C 9 247 336420 2155.74 672 674 155.7
C 2 53 266955 1709.72 672 674 155.7
C 13 61 5624 31.78 672 674 155.7
D 13 223 94940 585.16 676 657 161.1
D 8 195 42214 257.92 676 657 161.1
D 13 46 29149 176.83 676 657 161.1

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