ASTROSAT CZTI

Data Quality Report

Orbit 44318

Creation date: 2024-06-27T23:02:04.443817
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_059T01_9000005990_44318cztM0_level2.fits modeM0/AS1A13_059T01_9000005990_44318cztM0_level2_quad_clean.evt
Size (bytes)602,352,000113,808,960
Size574.4 MB 108.5 MB
Events in quadrant A5,680,244789,270
Events in quadrant B5,139,117732,727
Events in quadrant C4,084,806756,619
Events in quadrant D6,825,095658,248

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227952
B0203832
C0174862
D0254142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73182403.279585%
B731882411.259907%
C73183514.796392%
D731887511.956819%

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 7733 7320 54 54 0.70% 0.74%
B 7733 7320 613 613 7.93% 8.37%
C 7733 7320 248 248 3.21% 3.39%
D 7733 7320 765 765 9.89% 10.45%

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 1822781 10530.47 829 809 173.0
A 15 223 542867 3132.94 829 809 173.0
A 0 243 53227 302.96 829 809 173.0
B 5 172 1848495 12091.3 772 747 152.8
B 5 255 57679 372.55 772 747 152.8
B 0 219 46325 298.25 772 747 152.8
C 12 16 764271 4046.66 798 801 188.7
C 14 254 159916 843.37 798 801 188.7
C 1 3 28223 145.35 798 801 188.7
D 1 4 994207 5017.96 780 755 198.0
D 13 249 808325 4079.07 780 755 198.0
D 5 171 348762 1757.8 780 755 198.0

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