ASTROSAT CZTI

Data Quality Report

Orbit 46407

Creation date: 2024-06-27T23:22:49.942047
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_070T04_9000006204_46407cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46407cztM0_level2_quad_clean.evt
Size (bytes)545,143,680117,391,680
Size519.9 MB 112.0 MB
Events in quadrant A6,721,072790,676
Events in quadrant B4,519,948805,215
Events in quadrant C4,099,393743,668
Events in quadrant D4,266,138700,515

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250970
B0186510
C0176774
D0180580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7389991.339829%
B73891642.219515%
C73893204.330762%
D73891932.611991%

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 7389 7389 16 16 0.22% 0.22%
B 7389 7389 121 121 1.64% 1.64%
C 7389 7389 266 266 3.60% 3.60%
D 7389 7389 130 130 1.76% 1.76%

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 3410068 20167.87 807 789 169.0
A 13 248 99376 583.2 807 789 169.0
A 15 14 40440 234.56 807 789 169.0
B 2 2 928207 5893.16 803 776 157.4
B 5 172 166633 1053.9 803 776 157.4
B 15 201 113649 717.23 803 776 157.4
C 12 249 939041 5092.66 781 784 184.2
C 14 254 57779 309.36 781 784 184.2
C 3 233 30027 158.72 781 784 184.2
D 2 37 431864 2184.2 788 763 197.4
D 5 235 177482 895.36 788 763 197.4
D 14 34 133955 674.82 788 763 197.4

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