ASTROSAT CZTI

Data Quality Report

Orbit 32410

Creation date: 2024-06-27T20:39:54.243271
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/AS1T04_059T01_9000004704_32410cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32410cztM0_level2_quad_clean.evt
Size (bytes)728,167,68078,442,560
Size694.4 MB 74.8 MB
Events in quadrant A2,940,869597,245
Events in quadrant B6,360,067533,766
Events in quadrant C7,234,183335,080
Events in quadrant D5,128,571504,612

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01223235
B023106110
C025414159
D01934272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5781300.518941%
B576580613.980919%
C5763189932.951588%
D57705319.202773%

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 7152 5795 0 0 0.00% 0.00%
B 7152 5780 576 576 8.05% 9.97%
C 7152 5774 1573 1573 21.99% 27.24%
D 7152 5784 461 461 6.45% 7.97%

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 13 254 12173 75.22 758 748 151.9
A 3 137 7121 41.96 758 748 151.9
A 0 226 6777 39.69 758 748 151.9
B 6 159 1663672 12479.95 709 694 133.3
B 5 172 1193708 8953.07 709 694 133.3
B 4 80 529211 3966.3 709 694 133.3
C 3 233 4944896 40583.48 523 527 121.8
C 14 238 103948 848.88 523 527 121.8
C 0 10 53560 435.3 523 527 121.8
D 1 47 979306 6031.02 684 666 162.3
D 12 218 664017 4088.0 684 666 162.3
D 8 195 469961 2892.1 684 666 162.3

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