ASTROSAT CZTI

Data Quality Report

Orbit 02356

Creation date: 2024-06-27T14:16:41.694874
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_030T01_9000000358_02356cztM0_level2.evt modeM0/AS1T01_030T01_9000000358_02356cztM0_level2_quad_clean.evt
Size (bytes)1,414,644,480360,025,920
Size1.3 GB 343.3 MB
Events in quadrant A11,539,0572,362,591
Events in quadrant B10,199,4862,412,961
Events in quadrant C10,223,3602,345,610
Events in quadrant D9,393,3862,270,722

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 25397 21997 444 444 1.75% 2.02%
B 25397 21997 27 27 0.11% 0.12%
C 25397 21997 50 50 0.20% 0.23%
D 25397 21997 6 6 0.02% 0.03%

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