ASTROSAT CZTI

Data Quality Report

Orbit 02435

Creation date: 2024-06-27T14:17:43.616871
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/AS1T01_042T01_9000000366_02435cztM0_level2.evt modeM0/AS1T01_042T01_9000000366_02435cztM0_level2_common_clean.evt
Size (bytes)1,261,595,520276,275,520
Size1.2 GB 263.5 MB
Events in quadrant A8,645,0431,852,963
Events in quadrant B8,882,5991,862,685
Events in quadrant C9,875,4901,680,133
Events in quadrant D9,612,0321,757,392

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 19718 17612 19 19 0.10% 0.11%
B 19718 17657 40 40 0.20% 0.23%
C 19718 17634 422 422 2.14% 2.39%
D 19718 17634 330 330 1.67% 1.87%

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