ASTROSAT CZTI

Data Quality Report

Orbit 07811

Creation date: 2024-06-27T15:24:19.084624
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/AS1G06_032T01_9000001074_07811cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07811cztM0_level2_quad_clean.evt
Size (bytes)425,246,400105,249,600
Size405.5 MB 100.4 MB
Events in quadrant A2,926,310690,025
Events in quadrant B3,382,245709,690
Events in quadrant C2,891,730682,106
Events in quadrant D3,232,902649,110

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132563
B0143642
C0132212
D0142432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6546230.351360%
B6546731.115185%
C654690.137489%
D6546360.549954%

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 7561 6546 0 0 0.00% 0.00%
B 7561 6546 21 21 0.28% 0.32%
C 7561 6546 0 0 0.00% 0.00%
D 7561 6547 19 19 0.25% 0.29%

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 13 14 7987 46.67 756 742 155.2
A 0 226 7186 41.51 756 742 155.2
A 12 194 6597 37.72 756 742 155.2
B 4 239 122529 832.8 768 749 146.2
B 10 246 119526 812.27 768 749 146.2
B 0 219 56849 383.64 768 749 146.2
C 1 16 19225 107.96 734 738 171.2
C 12 4 6429 33.23 734 738 171.2
C 13 61 5713 29.05 734 738 171.2
D 13 104 191808 1066.89 728 706 179.1
D 2 152 138666 770.2 728 706 179.1
D 2 14 71879 397.34 728 706 179.1

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