ASTROSAT CZTI

Data Quality Report

Orbit 06164

Creation date: 2024-06-27T15:03:37.498079
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/AS1A02_006T01_9000000802_06164cztM0_level2.evt modeM0/AS1A02_006T01_9000000802_06164cztM0_level2_quad_clean.evt
Size (bytes)444,467,52085,383,360
Size423.9 MB 81.4 MB
Events in quadrant A3,248,968540,678
Events in quadrant B3,463,773548,732
Events in quadrant C3,115,275536,559
Events in quadrant D3,203,639518,931

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138359
B01453915
C01347916
D01391216

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309450.713267%
B6307941.490407%
C6306450.713606%
D6307630.998890%

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 7582 6313 5 5 0.07% 0.08%
B 7582 6313 21 21 0.28% 0.33%
C 7582 6313 21 21 0.28% 0.33%
D 7582 6313 26 26 0.34% 0.41%

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 8 15 166357 1038.47 788 774 159.4
A 13 251 34989 214.58 788 774 159.4
A 4 2 14925 88.75 788 774 159.4
B 3 64 172023 1150.98 793 775 148.8
B 0 219 128255 856.81 793 775 148.8
B 4 81 63388 420.83 793 775 148.8
C 1 16 133897 762.32 760 768 174.6
C 12 16 8023 41.54 760 768 174.6
C 13 61 5853 29.12 760 768 174.6
D 13 169 136846 732.67 759 738 185.8
D 1 20 57842 307.39 759 738 185.8
D 13 105 51887 275.33 759 738 185.8

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