ASTROSAT CZTI

Data Quality Report

Orbit 46173

Creation date: 2024-06-27T23:20:00.534795
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_194T01_9000006180_46173cztM0_level2.fits modeM0/AS1T05_194T01_9000006180_46173cztM0_level2_quad_clean.evt
Size (bytes)565,698,240111,015,360
Size539.5 MB 105.9 MB
Events in quadrant A6,350,277734,912
Events in quadrant B5,070,523775,947
Events in quadrant C3,137,194734,611
Events in quadrant D5,837,849626,504

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236482
B0200932
C0146232
D0223713

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70283424.866249%
B70281722.447353%
C7028330.469550%
D70276499.235805%

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 7703 7030 103 103 1.34% 1.47%
B 7703 7030 36 36 0.47% 0.51%
C 7703 7030 8 8 0.10% 0.11%
D 7702 7028 470 470 6.10% 6.69%

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 3124252 19801.85 760 744 157.7
A 7 3 134474 847.8 760 744 157.7
A 13 248 79966 502.24 760 744 157.7
B 3 112 1790327 11925.2 770 745 150.1
B 15 201 111242 736.32 770 745 150.1
B 4 171 47296 310.2 770 745 150.1
C 12 2 129995 733.31 752 754 176.2
C 3 233 43237 241.05 752 754 176.2
C 14 254 12906 68.95 752 754 176.2
D 1 52 766444 4223.07 721 696 181.3
D 2 37 543867 2995.57 721 696 181.3
D 13 249 536633 2955.67 721 696 181.3

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