ASTROSAT CZTI

Data Quality Report

Orbit 10613

Creation date: 2024-06-27T16:01:30.194770
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/AS1T01_191T01_9000001536_10613cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10613cztM0_level2_quad_clean.evt
Size (bytes)569,687,04098,899,200
Size543.3 MB 94.3 MB
Events in quadrant A3,987,633624,419
Events in quadrant B4,719,993622,774
Events in quadrant C3,489,555637,618
Events in quadrant D4,554,732596,260

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166892
B0187851
C0153081
D0184911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73903414.614344%
B73905537.483085%
C73902473.342355%
D73902513.396482%

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 7505 7392 83 83 1.11% 1.12%
B 7505 7392 162 162 2.16% 2.19%
C 7505 7392 1 1 0.01% 0.01%
D 7505 7391 12 12 0.16% 0.16%

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 15 174 463292 2491.01 897 878 185.6
A 1 162 24443 126.94 897 878 185.6
A 13 251 13162 66.17 897 878 185.6
B 4 239 1090599 6381.85 885 865 170.8
B 0 219 98967 574.52 885 865 170.8
B 0 214 35117 200.59 885 865 170.8
C 14 67 18399 85.33 884 893 205.2
C 4 254 11444 51.43 884 893 205.2
C 14 234 7473 32.07 884 893 205.2
D 8 195 633175 2997.5 871 848 211.0
D 2 16 247376 1168.65 871 848 211.0
D 5 222 183526 865.97 871 848 211.0

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