ASTROSAT CZTI

Data Quality Report

Orbit 03652

Creation date: 2024-06-27T14:32:00.132308
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_03652cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03652cztM0_level2_quad_clean.evt
Size (bytes)554,526,72093,208,320
Size528.8 MB 88.9 MB
Events in quadrant A3,935,723576,713
Events in quadrant B4,800,848573,482
Events in quadrant C3,586,388576,707
Events in quadrant D3,954,930566,237

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171834
B0194203
C0162743
D0175023

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76081902.497371%
B76081902.497371%
C7608620.814932%
D7608590.775499%

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 7803 7611 98 98 1.26% 1.29%
B 7803 7611 48 48 0.62% 0.63%
C 7803 7611 23 23 0.29% 0.30%
D 7803 7611 28 28 0.36% 0.37%

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 310988 1762.08 855 833 176.0
A 13 164 170216 962.31 855 833 176.0
A 8 15 115125 649.32 855 833 176.0
B 15 204 764203 4522.5 871 846 168.8
B 5 172 186431 1099.5 871 846 168.8
B 14 167 180693 1065.5 871 846 168.8
C 2 53 141518 709.9 846 845 198.2
C 9 247 50177 248.95 846 845 198.2
C 1 16 30411 149.2 846 845 198.2
D 13 25 457010 2194.13 839 815 207.9
D 2 118 134516 643.05 839 815 207.9
D 8 195 51243 242.54 839 815 207.9

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