ASTROSAT CZTI

Data Quality Report

Orbit 44259

Creation date: 2024-06-27T23:01:06.458506
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_080T05_9000005980_44259cztM0_level2.fits modeM0/AS1A13_080T05_9000005980_44259cztM0_level2_quad_clean.evt
Size (bytes)486,789,120108,907,200
Size464.2 MB 103.9 MB
Events in quadrant A5,458,480724,502
Events in quadrant B4,463,595746,875
Events in quadrant C3,167,385716,758
Events in quadrant D4,408,980641,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213052
B0180252
C0143722
D0177702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67122643.933254%
B67121892.815852%
C6712340.506555%
D67122033.024434%

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 7612 6713 107 107 1.41% 1.59%
B 7612 6713 60 60 0.79% 0.89%
C 7612 6713 24 24 0.32% 0.36%
D 7612 6713 161 161 2.12% 2.40%

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 1852676 12251.47 726 712 151.2
A 15 223 550372 3636.22 726 712 151.2
A 10 248 88754 582.43 726 712 151.2
B 0 200 522851 3690.07 732 712 141.5
B 4 173 239777 1689.53 732 712 141.5
B 0 230 211750 1491.45 732 712 141.5
C 4 254 158048 936.63 709 712 168.0
C 3 233 129648 767.56 709 712 168.0
C 14 254 106114 627.46 709 712 168.0
D 5 235 456090 2584.15 698 675 176.2
D 13 171 298159 1688.01 698 675 176.2
D 12 233 192829 1090.34 698 675 176.2

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