ASTROSAT CZTI

Data Quality Report

Orbit 08393

Creation date: 2024-06-27T15:31:52.658341
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_062T01_9000001176_08393cztM0_level2.evt modeM0/AS1A03_062T01_9000001176_08393cztM0_level2_quad_clean.evt
Size (bytes)431,746,56076,691,520
Size411.7 MB 73.1 MB
Events in quadrant A2,990,816479,608
Events in quadrant B3,096,229491,050
Events in quadrant C2,924,865470,235
Events in quadrant D3,645,031451,407

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126973
B0130022
C0126392
D0148772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6155210.341186%
B6155290.471162%
C615580.129976%
D61551021.657189%

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 7425 6156 0 0 0.00% 0.00%
B 7425 6156 1 1 0.01% 0.02%
C 7425 6156 1 1 0.01% 0.02%
D 7425 6156 76 76 1.02% 1.23%

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 0 226 7278 41.2 776 759 158.2
A 12 194 6793 38.14 776 759 158.2
A 14 111 4834 25.75 776 759 158.2
B 10 252 29656 195.56 779 760 147.8
B 4 81 22310 145.84 779 760 147.8
B 0 213 18463 119.81 779 760 147.8
C 1 16 14007 76.55 746 750 173.2
C 13 61 5789 29.1 746 750 173.2
C 3 202 1871 6.47 746 750 173.2
D 2 14 456657 2580.33 735 718 176.7
D 2 136 267359 1509.02 735 718 176.7
D 12 233 56955 318.27 735 718 176.7

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