ASTROSAT CZTI

Data Quality Report

Orbit 47118

Creation date: 2024-06-27T23:31:57.132338
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/AS1C09_003T01_9000006298_47118cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47118cztM0_level2_quad_clean.evt
Size (bytes)546,707,520116,657,280
Size521.4 MB 111.3 MB
Events in quadrant A7,360,284793,500
Events in quadrant B4,064,972789,179
Events in quadrant C3,547,930749,868
Events in quadrant D4,691,984685,461

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270930
B0169420
C0160180
D0191070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73801852.506775%
B73801872.533875%
C7381771.043219%
D73812953.996748%

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 7380 7380 15 15 0.20% 0.20%
B 7380 7380 43 43 0.58% 0.58%
C 7381 7381 54 54 0.73% 0.73%
D 7381 7381 229 229 3.10% 3.10%

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 4016309 23350.64 826 809 172.0
A 14 235 87907 506.49 826 809 172.0
A 9 191 23317 130.89 826 809 172.0
B 4 21 275901 1711.03 815 790 160.8
B 12 3 151082 934.72 815 790 160.8
B 5 32 133518 825.49 815 790 160.8
C 14 254 315019 1659.01 799 798 189.4
C 12 2 83033 434.18 799 798 189.4
C 12 249 9673 46.86 799 798 189.4
D 12 233 516340 2573.71 797 771 200.3
D 2 249 301609 1501.78 797 771 200.3
D 12 3 294138 1464.48 797 771 200.3

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