ASTROSAT CZTI

Data Quality Report

Orbit 46417

Creation date: 2024-06-27T23:22:57.815271
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_033T03_9000006206_46417cztM0_level2.fits modeM0/AS1A13_033T03_9000006206_46417cztM0_level2_quad_clean.evt
Size (bytes)466,110,720116,032,320
Size444.5 MB 110.7 MB
Events in quadrant A6,161,896767,060
Events in quadrant B3,322,192814,341
Events in quadrant C3,334,830775,751
Events in quadrant D3,924,925698,122

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222962
B0138572
C0140842
D0161112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65702954.490107%
B65701582.404871%
C6570931.415525%
D65692734.155884%

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 7720 6571 18 18 0.23% 0.27%
B 7720 6571 0 0 0.00% 0.00%
C 7720 6571 13 13 0.17% 0.20%
D 7719 6570 162 162 2.10% 2.47%

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 2967548 17650.06 806 790 168.1
A 13 248 73333 431.58 806 790 168.1
A 13 254 10773 59.39 806 790 168.1
B 0 197 51954 321.02 808 783 159.4
B 0 190 24921 151.43 808 783 159.4
B 3 112 21826 132.01 808 783 159.4
C 14 254 146824 780.13 794 800 187.2
C 3 233 80092 423.61 794 800 187.2
C 1 3 10133 49.86 794 800 187.2
D 13 249 443632 2258.8 792 770 196.1
D 2 37 388750 1978.87 792 770 196.1
D 2 234 31809 158.31 792 770 196.1

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