ASTROSAT CZTI

Data Quality Report

Orbit 45493

Creation date: 2024-06-27T23:12:52.708036
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_054T01_9000006098_45493cztM0_level2.fits modeM0/AS1A13_054T01_9000006098_45493cztM0_level2_quad_clean.evt
Size (bytes)527,244,480128,793,600
Size502.8 MB 122.8 MB
Events in quadrant A6,324,471848,686
Events in quadrant B3,837,968887,565
Events in quadrant C3,705,788846,333
Events in quadrant D5,033,400766,005

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247431
B0171591
C0170071
D0205582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1139625966020648139625091825710
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79301461.841110%
B79301281.614124%
C7930801.008827%
D79291642.068357%

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 7930 7930 2 2 0.03% 0.03%
B 7930 7930 32 32 0.40% 0.40%
C 7930 7930 37 37 0.47% 0.47%
D 7929 7929 88 88 1.11% 1.11%

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 2803938 14784.91 904 883 189.6
A 13 248 13109 64.49 904 883 189.6
A 3 137 10708 51.82 904 883 189.6
B 15 201 94056 509.24 912 885 183.0
B 5 172 42405 226.93 912 885 183.0
B 12 18 26159 138.14 912 885 183.0
C 14 254 191426 895.58 892 896 212.7
C 2 14 13624 59.83 892 896 212.7
C 1 3 9478 40.34 892 896 212.7
D 1 52 552386 2453.44 880 850 224.8
D 11 241 551259 2448.43 880 850 224.8
D 13 249 167936 743.26 880 850 224.8

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