ASTROSAT CZTI

Data Quality Report

Orbit 11407

Creation date: 2024-06-27T16:12:30.246446
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/AS1G08_066T01_9000001668_11407cztM0_level2.evt modeM0/AS1G08_066T01_9000001668_11407cztM0_level2_quad_clean.evt
Size (bytes)473,558,40090,118,080
Size451.6 MB 85.9 MB
Events in quadrant A3,283,528584,290
Events in quadrant B4,350,444576,906
Events in quadrant C2,984,275569,689
Events in quadrant D3,279,839542,747

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141333
B0172142
C0135252
D0144572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6526971.486362%
B65263685.638983%
C6526170.260496%
D65261031.578302%

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 7657 6527 8 8 0.10% 0.12%
B 7657 6527 169 169 2.21% 2.59%
C 7657 6527 0 0 0.00% 0.00%
D 7657 6527 66 66 0.86% 1.01%

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 111202 680.7 795 778 162.2
A 1 162 28030 167.99 795 778 162.2
A 11 29 27444 164.38 795 778 162.2
B 4 239 1119239 7475.37 786 769 149.6
B 15 204 54085 356.34 786 769 149.6
B 3 189 32788 214.0 786 769 149.6
C 13 61 5712 27.88 764 769 177.3
C 14 234 2721 11.01 764 769 177.3
C 3 202 1860 6.15 764 769 177.3
D 10 253 176793 965.94 756 733 182.3
D 2 120 94126 512.39 756 733 182.3
D 13 172 37126 199.67 756 733 182.3

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