ASTROSAT CZTI

Data Quality Report

Orbit 46530

Creation date: 2024-06-27T23:24:18.469541
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_091T05_9000006224_46530cztM0_level2.fits modeM0/AS1A13_091T05_9000006224_46530cztM0_level2_quad_clean.evt
Size (bytes)533,756,160113,296,320
Size509.0 MB 108.0 MB
Events in quadrant A7,878,478709,105
Events in quadrant B4,190,260784,149
Events in quadrant C3,325,770760,202
Events in quadrant D3,822,203691,182

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281182
B0171172
C0148992
D0163392

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69796899.872475%
B69791712.450208%
C6980440.630372%
D6980921.318052%

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 8999 6980 505 505 5.61% 7.23%
B 8999 6979 68 68 0.76% 0.97%
C 9000 6982 16 16 0.18% 0.23%
D 9000 6982 78 78 0.87% 1.12%

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 3367988 20843.31 774 756 161.5
A 13 248 1110491 6869.31 774 756 161.5
A 9 191 360843 2228.95 774 756 161.5
B 4 171 256369 1617.9 796 771 158.0
B 5 255 186783 1177.43 796 771 158.0
B 3 112 117988 741.97 796 771 158.0
C 9 54 220752 1175.19 788 792 187.2
C 1 3 15775 80.05 788 792 187.2
C 12 2 8545 41.42 788 792 187.2
D 13 249 217868 1095.26 781 757 198.2
D 1 52 150470 755.26 781 757 198.2
D 2 249 105887 530.35 781 757 198.2

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