ASTROSAT CZTI

Data Quality Report

Orbit 09260

Creation date: 2024-06-27T15:43:26.458132
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/AS1A03_062T04_9000001298_09260cztM0_level2.evt modeM0/AS1A03_062T04_9000001298_09260cztM0_level2_quad_clean.evt
Size (bytes)475,882,56087,085,440
Size453.8 MB 83.1 MB
Events in quadrant A4,693,305543,142
Events in quadrant B3,206,527561,575
Events in quadrant C3,022,025549,146
Events in quadrant D3,048,976529,988

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01863282
B01385622
C01354723
D01374336

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6491921.417347%
B6505420.645657%
C6504230.353629%
D6499500.769349%

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 7615 6516 28 28 0.37% 0.43%
B 7615 6516 2 2 0.03% 0.03%
C 7615 6515 3 3 0.04% 0.05%
D 7615 6516 15 15 0.20% 0.23%

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 8 5 1521443 9563.88 774 756 159.0
A 4 2 112062 700.02 774 756 159.0
A 1 162 38409 236.81 774 756 159.0
B 0 219 85762 571.16 782 762 148.8
B 0 214 53653 355.4 782 762 148.8
B 12 111 15775 100.88 782 762 148.8
C 9 68 41785 232.25 760 762 176.6
C 14 234 8044 41.23 760 762 176.6
C 13 61 5847 28.79 760 762 176.6
D 7 71 70659 352.32 754 736 198.5
D 2 136 41052 203.14 754 736 198.5
D 2 14 28099 137.88 754 736 198.5

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