ASTROSAT CZTI

Data Quality Report

Orbit 43607

Creation date: 2024-06-27T22:53:37.864608
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/AS1C07_001T10_9000005890_43607cztM0_level2.fits modeM0/AS1C07_001T10_9000005890_43607cztM0_level2_quad_clean.evt
Size (bytes)1,198,287,36076,613,760
Size1.1 GB 73.1 MB
Events in quadrant A4,615,095749,604
Events in quadrant B6,199,012741,104
Events in quadrant C17,932,402200,401
Events in quadrant D15,086,370148,651

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181721
B0231141
C0578828
D0494341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67872673.933991%
B678878011.490866%
C6787672799.115957%
D6787662897.657286%

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 7552 6788 145 145 1.92% 2.14%
B 7553 6789 508 508 6.73% 7.48%
C 7551 6786 6629 6629 87.79% 97.69%
D 7551 6786 5175 5175 68.53% 76.26%

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 883349 5810.01 741 725 151.9
A 15 223 596769 3923.56 741 725 151.9
A 15 222 84454 551.16 741 725 151.9
B 4 206 2282470 16637.74 722 701 137.1
B 5 235 434533 3163.33 722 701 137.1
B 0 219 155194 1126.5 722 701 137.1
C 15 142 11258161 226783.9 210 210 49.6
C 15 158 2553688 51438.11 210 210 49.6
C 15 126 1476919 29747.32 210 210 49.6
D 4 212 9670168 187743.54 179 172 51.5
D 4 216 2129722 41345.34 179 172 51.5
D 13 187 429911 8343.41 179 172 51.5

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