ASTROSAT CZTI

Data Quality Report

Orbit 05039

Creation date: 2024-06-27T14:50:31.572475
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_250T02_9000000638_05039cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05039cztM0_level2_quad_clean.evt
Size (bytes)505,330,56066,614,400
Size481.9 MB 63.5 MB
Events in quadrant A3,317,822389,961
Events in quadrant B3,467,600386,618
Events in quadrant C3,143,994388,403
Events in quadrant D4,903,717368,653

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145913
B0147962
C0142272
D0192732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69301482.135642%
B69301191.717172%
C6930961.385281%
D69303164.559885%

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 7855 6931 15 15 0.19% 0.22%
B 7855 6931 1 1 0.01% 0.01%
C 7855 6931 0 0 0.00% 0.00%
D 7855 6931 154 154 1.96% 2.22%

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 0 247 72570 426.32 830 810 168.3
A 0 50 35984 208.97 830 810 168.3
A 0 226 15113 84.97 830 810 168.3
B 15 204 181241 1140.08 831 811 158.3
B 0 219 35270 217.74 831 811 158.3
B 4 80 15460 92.56 831 811 158.3
C 14 67 17782 91.75 800 801 185.1
C 13 61 6602 31.34 800 801 185.1
C 9 54 3456 14.35 800 801 185.1
D 13 235 566818 2893.06 796 772 195.7
D 1 7 486272 2481.39 796 772 195.7
D 12 227 220517 1123.12 796 772 195.7

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter