ASTROSAT CZTI

Data Quality Report

Orbit 46547

Creation date: 2024-06-27T23:24:34.111684
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/AS1A13_091T08_9000006228_46547cztM0_level2.fits modeM0/AS1A13_091T08_9000006228_46547cztM0_level2_quad_clean.evt
Size (bytes)433,964,16085,345,920
Size413.9 MB 81.4 MB
Events in quadrant A4,910,834572,041
Events in quadrant B2,930,725592,887
Events in quadrant C3,230,287573,150
Events in quadrant D4,601,893493,645

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178761
B0119631
C0130681
D0171891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50301893.757455%
B50302204.373757%
C50301152.286282%
D50304458.846918%

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 5029 5029 33 33 0.66% 0.66%
B 5029 5029 110 110 2.19% 2.19%
C 5029 5029 95 95 1.89% 1.89%
D 5030 5030 385 385 7.65% 7.65%

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 10 83 2396126 19425.5 593 581 123.3
A 9 191 117317 946.61 593 581 123.3
A 13 248 84700 682.12 593 581 123.3
B 4 171 276182 2359.82 594 576 116.8
B 15 201 214590 1832.45 594 576 116.8
B 0 245 21096 175.69 594 576 116.8
C 9 54 704023 5133.82 582 585 137.0
C 14 254 215956 1571.82 582 585 137.0
C 1 3 21800 154.83 582 585 137.0
D 13 249 1002932 7000.8 565 547 143.2
D 1 52 858465 5991.83 565 547 143.2
D 2 120 212748 1482.04 565 547 143.2

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter