ASTROSAT CZTI

Data Quality Report

Orbit 47161

Creation date: 2024-06-27T23:32:23.766977
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_47161cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47161cztM0_level2_quad_clean.evt
Size (bytes)528,831,360121,112,640
Size504.3 MB 115.5 MB
Events in quadrant A7,438,736817,258
Events in quadrant B3,770,720827,654
Events in quadrant C3,392,322773,848
Events in quadrant D4,378,832714,603

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277010
B0164460
C0158680
D0184820

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7673871.133846%
B7673390.508276%
C7674140.182434%
D76741582.058900%

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 7673 7673 5 5 0.07% 0.07%
B 7673 7673 9 9 0.12% 0.12%
C 7674 7674 8 8 0.10% 0.10%
D 7674 7674 148 148 1.93% 1.93%

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 4085399 23429.75 842 822 174.3
A 7 3 35164 196.99 842 822 174.3
A 9 191 21245 117.15 842 822 174.3
B 12 3 163712 991.39 833 804 164.3
B 0 190 91228 550.28 833 804 164.3
B 0 183 68768 413.6 833 804 164.3
C 14 254 116443 608.39 809 810 190.1
C 15 208 88032 458.91 809 810 190.1
C 3 233 15617 77.91 809 810 190.1
D 12 1 284225 1378.36 815 787 205.6
D 12 218 230298 1116.11 815 787 205.6
D 1 47 162864 788.18 815 787 205.6

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