ASTROSAT CZTI

Data Quality Report

Orbit 46027

Creation date: 2024-06-27T23:18:54.943274
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_033T02_9000006154_46027cztM0_level2.fits modeM0/AS1A13_033T02_9000006154_46027cztM0_level2_quad_clean.evt
Size (bytes)623,494,080112,521,600
Size594.6 MB 107.3 MB
Events in quadrant A6,340,063756,275
Events in quadrant B8,679,818664,109
Events in quadrant C3,301,735788,078
Events in quadrant D4,214,187709,898

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01411
D01410

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023608110
B031083338
C01494066
D017646141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70332984.237168%
B7000149121.300000%
C7032811.151877%
D70211582.250392%

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 7950 7071 22 22 0.28% 0.31%
B 7950 7057 866 866 10.89% 12.27%
C 7950 7064 9 9 0.11% 0.13%
D 7949 7059 51 51 0.64% 0.72%

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 3062526 18201.22 809 792 168.2
A 13 248 104311 615.39 809 792 168.2
A 15 14 33609 195.09 809 792 168.2
B 3 112 5598629 36973.85 762 738 151.4
B 4 171 30928 199.4 762 738 151.4
B 8 234 22948 146.69 762 738 151.4
C 0 207 72621 372.95 812 817 192.5
C 14 254 33600 170.28 812 817 192.5
C 3 233 18476 91.72 812 817 192.5
D 1 52 875470 4408.82 798 777 198.4
D 2 249 156250 783.65 798 777 198.4
D 12 251 41495 205.24 798 777 198.4

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