ASTROSAT CZTI

Data Quality Report

Orbit 03782

Creation date: 2024-06-27T14:33:36.609019
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_248T01_9000000486_03782cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03782cztM0_level2_quad_clean.evt
Size (bytes)530,193,60082,932,480
Size505.6 MB 79.1 MB
Events in quadrant A4,258,803506,709
Events in quadrant B3,748,326516,474
Events in quadrant C3,411,714505,617
Events in quadrant D4,157,054488,481

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174883
B0157542
C0151022
D0171102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70822453.459475%
B7082801.129624%
C7082831.171985%
D70821712.414572%

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 7197 7084 145 145 2.01% 2.05%
B 7197 7084 6 6 0.08% 0.08%
C 7197 7084 36 36 0.50% 0.51%
D 7197 7084 82 82 1.14% 1.16%

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 0 118 723641 4287.38 818 797 168.6
A 13 251 135974 801.77 818 797 168.6
A 0 50 91450 537.69 818 797 168.6
B 15 204 355434 2178.57 833 813 162.8
B 5 200 54428 329.37 833 813 162.8
B 4 81 39219 235.94 833 813 162.8
C 14 234 168887 898.36 798 802 187.1
C 2 53 107381 569.63 798 802 187.1
C 1 16 7961 38.26 798 802 187.1
D 13 137 383051 1968.18 798 775 194.2
D 8 112 193523 992.38 798 775 194.2
D 1 20 121735 622.77 798 775 194.2

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