ASTROSAT CZTI

Data Quality Report

Orbit 47545

Creation date: 2024-07-13T17:23:56.204693
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_002T01_9000006334_47545cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47545cztM0_level2_quad_clean.evt
Size (bytes)455,126,400102,646,080
Size434.0 MB 97.9 MB
Events in quadrant A6,394,776685,168
Events in quadrant B2,900,663705,583
Events in quadrant C2,713,890688,226
Events in quadrant D4,353,194593,564

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239391
B0130151
C0127021
D0173661

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62421983.172060%
B6243891.425597%
C6242540.865107%
D62424947.914130%

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 7307 6242 12 12 0.16% 0.19%
B 7308 6243 2 2 0.03% 0.03%
C 7307 6242 0 0 0.00% 0.00%
D 7307 6242 354 354 4.84% 5.67%

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 3581519 24698.12 696 679 145.0
A 9 191 109677 751.79 696 679 145.0
A 13 254 9280 59.32 696 679 145.0
B 10 246 109237 799.6 693 672 135.8
B 12 111 16661 117.76 693 672 135.8
B 11 111 15979 112.74 693 672 135.8
C 14 254 12613 74.02 687 690 161.1
C 3 233 10099 58.41 687 690 161.1
C 1 3 8303 47.26 687 690 161.1
D 2 165 1108766 6468.84 677 653 171.3
D 2 249 270358 1574.46 677 653 171.3
D 2 120 92433 535.79 677 653 171.3

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