ASTROSAT CZTI

Data Quality Report

Orbit 44304

Creation date: 2024-06-27T23:01:51.905225
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_004T13_9000005988_44304cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44304cztM0_level2_quad_clean.evt
Size (bytes)613,437,120119,257,920
Size585.0 MB 113.7 MB
Events in quadrant A5,195,005833,302
Events in quadrant B5,631,994755,259
Events in quadrant C3,624,304819,932
Events in quadrant D7,662,391669,398

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215112
B0220012
C0163812
D0280912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7655921.201829%
B765589911.743958%
C7656310.404911%
D7656111014.498433%

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 7765 7657 7 7 0.09% 0.09%
B 7765 7657 616 616 7.93% 8.04%
C 7766 7658 12 12 0.15% 0.16%
D 7766 7658 944 944 12.16% 12.33%

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 1773468 9779.39 868 847 181.3
A 4 0 21376 113.26 868 847 181.3
A 7 3 19845 104.81 868 847 181.3
B 5 172 1529674 9617.75 808 784 159.0
B 0 219 310509 1948.38 808 784 159.0
B 3 112 129047 806.86 808 784 159.0
C 14 254 113856 562.3 855 861 201.0
C 15 208 54416 266.51 855 861 201.0
C 9 54 51613 252.56 855 861 201.0
D 13 249 1829067 8870.45 812 785 206.1
D 5 222 1275519 6184.75 812 785 206.1
D 1 52 594347 2879.84 812 785 206.1

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