ASTROSAT CZTI

Data Quality Report

Orbit 46316

Creation date: 2024-06-27T23:21:37.478182
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/AS1T05_200T01_9000006196_46316cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46316cztM0_level2_quad_clean.evt
Size (bytes)437,552,640100,609,920
Size417.3 MB 95.9 MB
Events in quadrant A5,453,508667,326
Events in quadrant B3,794,614691,838
Events in quadrant C2,715,336664,978
Events in quadrant D3,769,408605,386

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197691
B0151843
C0123991
D0152721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59742774.636759%
B59732153.599531%
C5974851.422832%
D59741803.013057%

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 7034 5975 23 23 0.33% 0.38%
B 7033 5974 60 60 0.85% 1.00%
C 7034 5975 6 6 0.09% 0.10%
D 7034 5975 75 75 1.07% 1.26%

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 2652663 18450.71 692 678 143.7
A 15 223 98582 681.15 692 678 143.7
A 13 254 10583 68.91 692 678 143.7
B 5 63 314398 2319.22 686 667 135.3
B 5 172 250645 1847.94 686 667 135.3
B 4 171 134900 992.3 686 667 135.3
C 0 207 37767 233.58 675 678 158.8
C 12 2 34114 210.58 675 678 158.8
C 12 250 6760 38.3 675 678 158.8
D 1 52 753290 4433.93 676 654 169.7
D 13 249 151742 890.09 676 654 169.7
D 2 249 79705 465.71 676 654 169.7

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