ASTROSAT CZTI

Data Quality Report

Orbit 32190

Creation date: 2024-06-27T20:37:24.225061
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/AS1A09_131T01_9000004690_32190cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32190cztM0_level2_quad_clean.evt
Size (bytes)636,203,520100,238,400
Size606.7 MB 95.6 MB
Events in quadrant A3,024,274660,583
Events in quadrant B5,082,381664,499
Events in quadrant C3,999,105653,978
Events in quadrant D6,744,830625,698

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130862
B0198331
C0160211
D0244881

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6169360.583563%
B61691272.058680%
C616970011.347058%
D61694377.083806%

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 7339 6170 0 0 0.00% 0.00%
B 7339 6170 19 19 0.26% 0.31%
C 7339 6170 29 29 0.40% 0.47%
D 7339 6170 240 240 3.27% 3.89%

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 13 6 14094 86.13 776 761 154.8
A 12 96 12906 78.45 776 761 154.8
A 13 254 11667 70.45 776 761 154.8
B 6 159 1842931 12784.44 774 756 144.1
B 0 190 53529 366.24 774 756 144.1
B 5 172 50145 342.75 774 756 144.1
C 0 10 325023 1932.39 731 738 167.8
C 3 233 280885 1669.38 731 738 167.8
C 14 238 270457 1607.24 731 738 167.8
D 8 195 3557338 19955.81 751 731 178.2
D 12 233 186552 1042.63 751 731 178.2
D 5 81 64192 356.07 751 731 178.2

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