ASTROSAT CZTI

Data Quality Report

Orbit 47814

Creation date: 2024-07-31T21:59:14.988738
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/AS1A13_081T01_9000006354_47814cztM0_level2.fits modeM0/AS1A13_081T01_9000006354_47814cztM0_level2_quad_clean.evt
Size (bytes)552,188,160112,714,560
Size526.6 MB 107.5 MB
Events in quadrant A7,167,204757,237
Events in quadrant B4,438,454769,031
Events in quadrant C3,135,801727,411
Events in quadrant D5,146,694662,321

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02656614
B0182389
C0148864
D02016924

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71261692.371597%
B7127680.954118%
C7129280.392762%
D71263304.630929%

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 7131 7130 17 17 0.24% 0.24%
B 7132 7131 12 12 0.17% 0.17%
C 7132 7131 16 16 0.22% 0.22%
D 7132 7129 281 281 3.94% 3.94%

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 4017562 24594.03 778 761 163.3
A 13 248 95605 580.71 778 761 163.3
A 7 3 31687 189.35 778 761 163.3
B 10 7 854161 5638.33 770 743 151.4
B 0 200 246689 1624.91 770 743 151.4
B 5 255 61403 400.77 770 743 151.4
C 14 254 82506 454.46 764 766 179.9
C 12 2 35672 194.07 764 766 179.9
C 3 110 11186 57.93 764 766 179.9
D 12 2 788839 4151.48 760 735 189.8
D 2 165 470692 2475.58 760 735 189.8
D 2 249 316187 1661.7 760 735 189.8

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