ASTROSAT CZTI

Data Quality Report

Orbit 10295

Creation date: 2024-06-27T15:57:34.513336
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_072T01_9000001484_10295cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10295cztM0_level2_quad_clean.evt
Size (bytes)406,370,88077,610,240
Size387.5 MB 74.0 MB
Events in quadrant A2,711,604476,666
Events in quadrant B2,854,821466,371
Events in quadrant C2,630,118479,861
Events in quadrant D3,706,506513,661

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02864216736
B03245320471
C02936017404
D03172016840

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284150
B0284155
C0284153
D0270142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5720681.188811%
B5513991.795755%
C5793360.621440%
D6574430.654092%

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 7102 6756 0 0 0.00% 0.00%
B 7102 6566 1 1 0.01% 0.02%
C 7101 6783 0 0 0.00% 0.00%
D 7102 6945 0 0 0.00% 0.00%

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 35020 241.75 689 673 142.1
A 8 15 18977 128.83 689 673 142.1
A 15 174 8535 55.34 689 673 142.1
B 4 239 126291 975.71 663 648 128.8
B 11 51 80913 623.32 663 648 128.8
B 0 214 29716 225.73 663 648 128.8
C 10 169 5390 29.88 672 675 157.8
C 13 61 5134 28.26 672 675 157.8
C 14 234 2647 12.5 672 675 157.8
D 8 195 631682 3413.1 757 734 184.9
D 2 152 39035 207.19 757 734 184.9
D 7 71 38156 202.43 757 734 184.9

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