ASTROSAT CZTI

Data Quality Report

Orbit 03707

Creation date: 2024-06-27T14:32:40.439427
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/AS1G05_009T01_9000000482_03707cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03707cztM0_level2_quad_clean.evt
Size (bytes)455,204,16082,840,320
Size434.1 MB 79.0 MB
Events in quadrant A3,021,349528,872
Events in quadrant B4,362,051524,127
Events in quadrant C2,815,577523,205
Events in quadrant D3,172,147506,045

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130372
B0169801
C0125331
D0136481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61061442.358336%
B61062413.946937%
C6106841.375696%
D61061011.654111%

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 7130 6106 29 29 0.41% 0.47%
B 7131 6107 104 104 1.46% 1.70%
C 7131 6107 2 2 0.03% 0.03%
D 7131 6107 17 17 0.24% 0.28%

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 0 50 126651 843.2 734 720 149.3
A 13 248 18545 119.35 734 720 149.3
A 0 118 18426 118.55 734 720 149.3
B 14 167 1064303 7498.86 733 716 141.8
B 15 204 214986 1510.72 733 716 141.8
B 3 0 149863 1051.57 733 716 141.8
C 1 16 11447 64.19 714 719 167.1
C 12 4 6985 37.49 714 719 167.1
C 13 61 6061 31.96 714 719 167.1
D 9 35 158525 904.01 714 694 174.6
D 2 37 113994 648.95 714 694 174.6
D 13 137 46591 262.89 714 694 174.6

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
Veto Counter