ASTROSAT CZTI

Data Quality Report

Orbit 45211

Creation date: 2024-06-27T23:10:37.778729
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/AS1A13_049T06_9000006054_45211cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45211cztM0_level2_quad_clean.evt
Size (bytes)531,031,680125,248,320
Size506.4 MB 119.4 MB
Events in quadrant A6,101,725828,722
Events in quadrant B3,926,527866,007
Events in quadrant C3,665,036844,634
Events in quadrant D5,387,954736,166

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239002
B0166112
C0160392
D0212892

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74231712.303651%
B74231522.047690%
C7424480.646552%
D74243845.172414%

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 9588 7425 15 15 0.16% 0.20%
B 9588 7424 62 62 0.65% 0.84%
C 9589 7426 29 29 0.30% 0.39%
D 9589 7426 315 315 3.29% 4.24%

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 10 83 2757094 15832.67 844 826 174.1
A 13 248 36142 202.86 844 826 174.1
A 0 243 25412 141.23 844 826 174.1
B 3 112 210422 1263.0 851 826 166.0
B 5 172 103445 618.37 851 826 166.0
B 10 3 94810 566.33 851 826 166.0
C 1 3 127286 635.08 848 853 199.1
C 12 2 88482 440.16 848 853 199.1
C 1 241 63247 313.4 848 853 199.1
D 13 249 668181 3208.08 824 800 208.0
D 1 47 394291 1891.5 824 800 208.0
D 7 96 234161 1121.76 824 800 208.0

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