ASTROSAT CZTI

Data Quality Report

Orbit 46567

Creation date: 2024-06-27T23:24:52.102448
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/AS1C07_001T10_9000006232_46567cztM0_level2.fits modeM0/AS1C07_001T10_9000006232_46567cztM0_level2_quad_clean.evt
Size (bytes)537,851,520112,875,840
Size512.9 MB 107.6 MB
Events in quadrant A6,281,389751,920
Events in quadrant B4,817,804759,949
Events in quadrant C3,120,769744,783
Events in quadrant D5,139,801667,074

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230735
B0191132
C0146361
D0201720

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70911201.692286%
B70932233.143945%
C7093200.281968%
D70943014.243022%

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 7093 7093 7 7 0.10% 0.10%
B 7094 7094 181 181 2.55% 2.55%
C 7094 7094 11 11 0.16% 0.16%
D 7093 7093 246 246 3.47% 3.47%

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 10 83 3188901 19778.77 776 760 161.2
A 9 191 29112 175.89 776 760 161.2
A 13 248 15579 91.93 776 760 161.2
B 2 2 1020036 6658.55 767 741 153.1
B 15 201 519259 3387.22 767 741 153.1
B 3 112 103966 674.32 767 741 153.1
C 2 14 65732 362.56 763 765 179.2
C 14 254 40328 220.79 763 765 179.2
C 3 233 20396 109.56 763 765 179.2
D 1 52 1029802 5439.99 754 730 189.2
D 13 249 312225 1646.66 754 730 189.2
D 2 120 168424 886.48 754 730 189.2

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