ASTROSAT CZTI

Data Quality Report

Orbit 30943

Creation date: 2024-06-27T20:21:27.649786
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/AS1A10_058T10_9000004472_30943cztM0_level2.evt modeM0/AS1A10_058T10_9000004472_30943cztM0_level2_quad_clean.evt
Size (bytes)543,530,88077,587,200
Size518.4 MB 74.0 MB
Events in quadrant A3,255,600490,777
Events in quadrant B5,477,552480,990
Events in quadrant C3,557,749459,265
Events in quadrant D3,728,878464,239

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138092
B0207452
C0145922
D0154542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6511260.399324%
B65111872.872063%
C65114506.911381%
D6511751.151897%

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 7601 6511 1 1 0.01% 0.02%
B 7601 6511 52 52 0.68% 0.80%
C 7601 6511 20 20 0.26% 0.31%
D 7601 6511 56 56 0.74% 0.86%

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 13 254 12750 70.94 839 825 168.1
A 3 137 8254 44.19 839 825 168.1
A 0 226 7193 37.88 839 825 168.1
B 6 159 1837649 11599.22 826 806 158.4
B 5 172 209079 1315.19 826 806 158.4
B 0 190 64817 404.21 826 806 158.4
C 14 238 222339 1225.98 775 781 180.7
C 14 254 135781 747.01 775 781 180.7
C 0 10 121180 666.22 775 781 180.7
D 8 195 413747 2165.68 812 793 190.7
D 12 233 117935 614.34 812 793 190.7
D 2 153 81031 420.8 812 793 190.7

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