ASTROSAT CZTI

Data Quality Report

Orbit 22434

Creation date: 2024-06-27T18:41:19.809656
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/AS1T03_159T01_9000003328_22434cztM0_level2.evt modeM0/AS1T03_159T01_9000003328_22434cztM0_level2_quad_clean.evt
Size (bytes)423,400,320113,777,280
Size403.8 MB 108.5 MB
Events in quadrant A3,111,080770,103
Events in quadrant B3,173,250795,151
Events in quadrant C3,088,767738,123
Events in quadrant D3,033,876715,766

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132881
B0133471
C0130601
D0131481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6114410.670592%
B6115550.899428%
C6115701.144726%
D6115430.703189%

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 7384 6115 0 0 0.00% 0.00%
B 7385 6115 1 1 0.01% 0.02%
C 7385 6116 0 0 0.00% 0.00%
D 7385 6116 27 27 0.37% 0.44%

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 2 79 20997 128.55 794 780 157.3
A 15 174 18720 114.08 794 780 157.3
A 3 1 12774 76.27 794 780 157.3
B 0 244 17902 116.11 800 783 147.4
B 12 111 17355 112.4 800 783 147.4
B 11 111 15354 98.83 800 783 147.4
C 14 238 121438 684.71 756 762 176.2
C 1 16 11684 61.97 756 762 176.2
C 0 10 7686 39.29 756 762 176.2
D 1 52 82206 445.08 758 739 183.0
D 7 38 31687 169.08 758 739 183.0
D 13 104 26635 141.48 758 739 183.0

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