ASTROSAT CZTI

Data Quality Report

Orbit 47008

Creation date: 2024-06-27T23:30:38.916765
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_006T01_9000006294_47008cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47008cztM0_level2_quad_clean.evt
Size (bytes)711,342,72095,212,800
Size678.4 MB 90.8 MB
Events in quadrant A6,354,848706,154
Events in quadrant B12,364,155366,062
Events in quadrant C3,107,205708,402
Events in quadrant D3,991,832639,631

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230792
B0412972
C0139812
D0164852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66241922.898551%
B6625389558.792453%
C6625630.950943%
D66252143.230189%

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 7614 6625 15 15 0.20% 0.23%
B 7615 6626 2953 2953 38.78% 44.57%
C 7615 6626 18 18 0.24% 0.27%
D 7615 6626 144 144 1.89% 2.17%

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 3427214 21801.32 747 729 157.2
A 9 191 31496 195.76 747 729 157.2
A 13 254 11213 66.71 747 729 157.2
B 3 112 9714781 79842.23 621 603 121.7
B 4 171 81686 666.43 621 603 121.7
B 0 190 32154 259.32 621 603 121.7
C 14 254 154239 884.5 737 740 173.5
C 3 233 35413 199.79 737 740 173.5
C 1 3 18230 100.78 737 740 173.5
D 13 249 573099 3125.11 728 704 183.2
D 1 52 387776 2113.3 728 704 183.2
D 12 3 144319 784.1 728 704 183.2

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