ASTROSAT CZTI

Data Quality Report

Orbit 14310

Creation date: 2024-06-27T16:53:20.670035
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/AS1G08_078T01_9000002110_14310cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14310cztM0_level2_quad_clean.evt
Size (bytes)451,779,84092,712,960
Size430.9 MB 88.4 MB
Events in quadrant A3,405,775592,051
Events in quadrant B3,237,315597,373
Events in quadrant C3,396,961590,304
Events in quadrant D3,199,886574,133

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142853
B0138632
C0140022
D0141022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6503270.415193%
B6503560.861141%
C6503180.276795%
D6503260.399815%

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 7534 6505 0 0 0.00% 0.00%
B 7534 6505 2 2 0.03% 0.03%
C 7534 6505 0 0 0.00% 0.00%
D 7534 6505 17 17 0.23% 0.26%

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 12 189 300541 1895.95 784 770 158.1
A 8 15 64619 403.82 784 770 158.1
A 9 143 18849 114.34 784 770 158.1
B 0 229 107111 702.86 787 769 151.3
B 0 189 24993 160.11 787 769 151.3
B 12 111 17937 113.47 787 769 151.3
C 3 233 400018 2211.57 768 771 180.5
C 13 61 5415 25.72 768 771 180.5
C 14 220 2712 10.75 768 771 180.5
D 5 222 192748 1056.95 760 745 181.7
D 10 70 46046 249.38 760 745 181.7
D 12 110 42138 227.86 760 745 181.7

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