ASTROSAT CZTI

Data Quality Report

Orbit 48117

Creation date: 2024-08-22T11:10:41.497210
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/AS1T05_223T01_9000006402_48117cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48117cztM0_level2_quad_clean.evt
Size (bytes)573,721,92095,555,520
Size547.1 MB 91.1 MB
Events in quadrant A8,103,630818,785
Events in quadrant B1,375,038212
Events in quadrant C3,446,070841,588
Events in quadrant D7,677,622670,781

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0293932
B085242
C0165092
D0284392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80703934.869888%
B8071806899.962830%
C8071310.384091%
D8071110913.740553%

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 8765 8071 37 37 0.42% 0.46%
B 8765 8070 1 1 0.01% 0.01%
C 8766 8073 1 1 0.01% 0.01%
D 8766 8071 842 842 9.61% 10.43%

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 4593165 25327.2 872 850 181.3
A 13 248 111248 608.86 872 850 181.3
A 13 254 15639 81.56 872 850 181.3
B 2 177 1114181 87243.63 55 53 12.8
B 4 21 26575 2076.85 55 53 12.8
B 0 200 5131 397.64 55 53 12.8
C 1 16 13925 63.58 873 873 205.3
C 12 2 8194 35.66 873 873 205.3
C 10 20 8183 35.61 873 873 205.3
D 7 67 2637547 12798.9 827 799 206.0
D 2 165 1217090 5903.93 827 799 206.0
D 2 37 353786 1713.42 827 799 206.0

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