ASTROSAT CZTI

Data Quality Report

Orbit 20613

Creation date: 2024-06-27T18:17:24.807065
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/AS1A06_003T04_9000003046_20613cztM0_level2.evt modeM0/AS1A06_003T04_9000003046_20613cztM0_level2_quad_clean.evt
Size (bytes)479,093,76079,470,720
Size456.9 MB 75.8 MB
Events in quadrant A3,261,927508,787
Events in quadrant B3,179,557515,504
Events in quadrant C3,342,798498,197
Events in quadrant D4,329,295476,563

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134121
B0131451
C0136431
D0167901

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58231742.988150%
B58241382.369505%
C58241853.176511%
D58245038.636676%

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 7038 5825 25 25 0.36% 0.43%
B 7039 5826 1 1 0.01% 0.02%
C 7039 5826 4 4 0.06% 0.07%
D 7039 5825 263 263 3.74% 4.52%

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 5 16 117769 748.34 782 769 156.3
A 15 174 75859 480.28 782 769 156.3
A 12 16 45788 287.94 782 769 156.3
B 0 190 41114 274.19 782 765 147.2
B 0 189 27660 182.76 782 765 147.2
B 12 111 16433 106.47 782 765 147.2
C 3 233 132982 747.43 758 765 176.9
C 14 238 117012 657.15 758 765 176.9
C 8 208 115614 649.25 758 765 176.9
D 2 165 886028 4837.82 754 734 183.0
D 13 153 277004 1509.72 754 734 183.0
D 1 52 139791 759.9 754 734 183.0

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