ASTROSAT CZTI

Data Quality Report

Orbit 44694

Creation date: 2024-06-27T23:05:23.540180
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_073T04_9000006010_44694cztM0_level2.fits modeM0/AS1A13_073T04_9000006010_44694cztM0_level2_quad_clean.evt
Size (bytes)511,136,640110,260,800
Size487.5 MB 105.2 MB
Events in quadrant A6,257,024715,034
Events in quadrant B4,049,289737,550
Events in quadrant C3,134,377747,335
Events in quadrant D4,942,734656,569

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241101
B0167281
C0144071
D0194511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69204326.242775%
B69213865.577229%
C6921610.881376%
D69214186.039590%

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 7695 6921 181 181 2.35% 2.62%
B 7696 6921 166 166 2.16% 2.40%
C 7696 6922 4 4 0.05% 0.06%
D 7696 6922 295 295 3.83% 4.26%

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 1992728 12440.6 766 748 160.1
A 15 223 1165782 7276.04 766 748 160.1
A 12 227 61397 378.77 766 748 160.1
B 5 255 766544 5054.23 768 744 151.5
B 0 186 78929 516.02 768 744 151.5
B 0 190 67998 443.87 768 744 151.5
C 3 233 40500 220.47 771 777 180.2
C 14 254 38923 211.72 771 777 180.2
C 15 208 37256 202.47 771 777 180.2
D 13 249 640030 3490.24 745 722 183.2
D 11 241 385284 2099.48 745 722 183.2
D 2 249 353005 1923.25 745 722 183.2

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