ASTROSAT CZTI

Data Quality Report

Orbit 47089

Creation date: 2024-06-27T23:31:37.049508
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/AS1C09_003T01_9000006298_47089cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47089cztM0_level2_quad_clean.evt
Size (bytes)614,376,000123,428,160
Size585.9 MB 117.7 MB
Events in quadrant A7,849,067849,750
Events in quadrant B4,629,389853,430
Events in quadrant C5,293,938725,678
Events in quadrant D4,356,089757,669

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290348
B0191240
C0215380
D0185570

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79172503.157762%
B79192443.081197%
C79207729.747475%
D79201141.439394%

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 7919 7918 15 15 0.19% 0.19%
B 7919 7919 70 70 0.88% 0.88%
C 7920 7920 708 708 8.94% 8.94%
D 7920 7920 74 74 0.93% 0.93%

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 4243912 22998.39 891 872 184.5
A 14 248 110082 591.95 891 872 184.5
A 13 254 14359 73.1 891 872 184.5
B 3 112 338208 1967.79 880 854 171.4
B 5 172 172012 998.37 880 854 171.4
B 12 18 124995 724.12 880 854 171.4
C 12 2 1888057 9816.09 826 829 192.3
C 14 254 113359 585.31 826 829 192.3
C 12 249 33535 170.11 826 829 192.3
D 1 47 457130 2088.49 874 845 218.5
D 1 52 102147 463.68 874 845 218.5
D 2 249 94994 430.93 874 845 218.5

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