ASTROSAT CZTI

Data Quality Report

Orbit 45900

Creation date: 2024-06-27T23:17:29.860538
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_033T02_9000006140_45900cztM0_level2.fits modeM0/AS1A13_033T02_9000006140_45900cztM0_level2_quad_clean.evt
Size (bytes)706,351,680117,976,320
Size673.6 MB 112.5 MB
Events in quadrant A6,737,387821,701
Events in quadrant B11,119,555656,555
Events in quadrant C3,489,015814,413
Events in quadrant D4,201,378740,640

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247160
B0384971
C0160070
D0178200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77451531.975468%
B7745228129.451259%
C7745190.245320%
D77451111.433183%

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 7745 7745 7 7 0.09% 0.09%
B 7745 7745 1393 1393 17.99% 17.99%
C 7745 7745 2 2 0.03% 0.03%
D 7745 7745 76 76 0.98% 0.98%

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 3149893 16563.36 901 880 190.1
A 14 235 86899 452.45 901 880 190.1
A 9 191 16251 80.85 901 880 190.1
B 3 112 7158200 43244.68 821 793 165.5
B 0 183 461047 2780.83 821 793 165.5
B 4 171 135230 812.26 821 793 165.5
C 2 14 30019 138.74 882 887 210.0
C 3 9 6921 28.74 882 887 210.0
C 8 128 6100 24.83 882 887 210.0
D 1 52 156207 688.55 881 851 225.6
D 13 249 133849 589.46 881 851 225.6
D 2 120 127346 560.64 881 851 225.6

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