ASTROSAT CZTI

Data Quality Report

Orbit 29191

Creation date: 2024-06-27T20:01:18.238216
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/AS1A10_048T07_9000004188_29191cztM0_level2.evt modeM0/AS1A10_048T07_9000004188_29191cztM0_level2_quad_clean.evt
Size (bytes)2,703,144,960367,329,600
Size2.5 GB 350.3 MB
Events in quadrant A15,565,4062,304,958
Events in quadrant B15,325,1762,360,449
Events in quadrant C24,869,8412,223,663
Events in quadrant D24,079,4852,166,147

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06140
B06140
C06140
D06140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0634755
B0644365
C0950645
D0918308

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A301063941.308709%
B301065031.670763%
C3010619196.374145%
D3010520576.832752%

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 33006 30111 0 0 0.00% 0.00%
B 33006 30111 23 23 0.07% 0.08%
C 33006 30111 501 501 1.52% 1.66%
D 33006 30111 1381 1381 4.18% 4.59%

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 1 113 1228819 1641.19 3715 3631 746.5
A 13 254 53244 66.46 3715 3631 746.5
A 3 137 37733 45.68 3715 3631 746.5
B 0 183 503146 710.73 3680 3586 702.9
B 0 190 103136 141.63 3680 3586 702.9
B 12 111 90480 123.63 3680 3586 702.9
C 3 233 10515290 12842.46 3518 3540 818.5
C 14 238 562404 682.78 3518 3540 818.5
C 2 114 69797 80.95 3518 3540 818.5
D 1 52 7696101 9200.2 3513 3418 836.1
D 8 195 1969571 2351.46 3513 3418 836.1
D 13 153 564911 671.53 3513 3418 836.1

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