ASTROSAT CZTI

Data Quality Report

Orbit 08307

Creation date: 2024-06-27T15:31:06.000051
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/AS1G07_080T03_9000001154_08307cztM0_level2.evt modeM0/AS1G07_080T03_9000001154_08307cztM0_level2_quad_clean.evt
Size (bytes)442,834,56092,076,480
Size422.3 MB 87.8 MB
Events in quadrant A3,200,218599,071
Events in quadrant B3,280,981604,633
Events in quadrant C3,025,544581,939
Events in quadrant D3,477,135563,849

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133612
B0134631
C0130001
D0143261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62861071.702195%
B62861131.797646%
C6286721.145402%
D62861512.402164%

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 7536 6286 2 2 0.03% 0.03%
B 7536 6286 2 2 0.03% 0.03%
C 7536 6286 0 0 0.00% 0.00%
D 7536 6286 61 61 0.81% 0.97%

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 0 23 26859 159.36 816 800 163.5
A 15 234 17259 100.65 816 800 163.5
A 15 239 10788 61.08 816 800 163.5
B 0 214 69378 452.05 811 793 151.7
B 0 229 28578 183.13 811 793 151.7
B 12 111 15596 97.57 811 793 151.7
C 13 61 5914 29.16 774 776 176.2
C 9 54 3628 16.19 774 776 176.2
C 3 202 1949 6.66 774 776 176.2
D 2 14 171370 879.41 778 760 194.0
D 6 225 133746 685.47 778 760 194.0
D 2 136 44152 223.66 778 760 194.0

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