ASTROSAT CZTI

Data Quality Report

Orbit 09233

Creation date: 2024-06-27T15:43:02.653967
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_051T01_9000001288_09233cztM0_level2.evt modeM0/AS1A03_051T01_9000001288_09233cztM0_level2_quad_clean.evt
Size (bytes)451,537,92088,977,600
Size430.6 MB 84.9 MB
Events in quadrant A3,421,649577,319
Events in quadrant B3,519,939581,802
Events in quadrant C2,903,367562,873
Events in quadrant D3,406,939537,803

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01409933
B01444234
C01278824
D01429329

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6221250.401865%
B6221620.996624%
C6223130.208902%
D6222250.401800%

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 7554 6234 10 10 0.13% 0.16%
B 7554 6234 32 32 0.42% 0.51%
C 7554 6233 3 3 0.04% 0.05%
D 7554 6235 23 23 0.30% 0.37%

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 235992 1501.13 769 758 156.7
A 1 162 104970 665.02 769 758 156.7
A 13 251 23356 144.21 769 758 156.7
B 0 245 170981 1156.44 775 757 147.2
B 4 48 108224 730.09 775 757 147.2
B 8 234 101126 681.87 775 757 147.2
C 14 234 11469 62.69 740 746 171.1
C 13 61 5914 30.21 740 746 171.1
C 14 67 3589 16.62 740 746 171.1
D 1 52 424620 2357.62 733 712 179.8
D 11 129 74119 408.26 733 712 179.8
D 2 14 43108 235.79 733 712 179.8

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