ASTROSAT CZTI

Data Quality Report

Orbit 03903

Creation date: 2024-06-27T14:35:02.807545
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_167T01_9000000500_03903cztM0_level2.evt modeM0/AS1G05_167T01_9000000500_03903cztM0_level2_quad_clean.evt
Size (bytes)541,186,56090,391,680
Size516.1 MB 86.2 MB
Events in quadrant A3,366,918584,701
Events in quadrant B6,209,966557,500
Events in quadrant C3,119,196576,513
Events in quadrant D3,247,794559,745

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146472
B0230881
C0139291
D0144201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6584801.215067%
B65845898.945930%
C6584640.972053%
D6584661.002430%

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 7569 6585 36 36 0.48% 0.55%
B 7569 6585 354 354 4.68% 5.38%
C 7569 6585 23 23 0.30% 0.35%
D 7569 6585 50 50 0.66% 0.76%

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 147548 930.02 767 751 157.8
A 0 118 113056 711.5 767 751 157.8
A 2 79 52185 325.86 767 751 157.8
B 7 221 2879370 19876.48 758 741 144.8
B 15 204 212451 1461.82 758 741 144.8
B 0 219 51460 350.21 758 741 144.8
C 9 247 58127 325.73 752 759 176.1
C 7 222 57469 322.0 752 759 176.1
C 12 4 42760 238.48 752 759 176.1
D 13 239 162871 899.62 746 725 180.2
D 13 223 96720 532.6 746 725 180.2
D 1 20 89088 490.26 746 725 180.2

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