ASTROSAT CZTI

Data Quality Report

Orbit 47066

Creation date: 2024-06-27T23:31:18.908853
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_005T01_9000006296_47066cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47066cztM0_level2_quad_clean.evt
Size (bytes)481,988,160115,845,120
Size459.7 MB 110.5 MB
Events in quadrant A6,935,579761,407
Events in quadrant B3,459,478795,793
Events in quadrant C3,138,782764,071
Events in quadrant D3,759,658694,790

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254702
B0149352
C0144522
D0161812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70622163.058624%
B7062320.453129%
C7063500.707914%
D70631502.123743%

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 9017 7064 40 40 0.44% 0.57%
B 9017 7064 7 7 0.08% 0.10%
C 9018 7065 4 4 0.04% 0.06%
D 9018 7065 86 86 0.95% 1.22%

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 3859950 23834.01 784 765 161.9
A 7 3 15153 88.86 784 765 161.9
A 13 254 12596 73.07 784 765 161.9
B 3 112 204792 1312.62 788 762 155.4
B 5 255 39696 250.48 788 762 155.4
B 5 32 29131 182.51 788 762 155.4
C 12 249 32937 174.53 785 788 184.2
C 12 250 19484 101.5 785 788 184.2
C 12 2 12190 61.9 785 788 184.2
D 1 52 337253 1722.67 779 756 195.3
D 13 249 320182 1635.28 779 756 195.3
D 12 233 41405 208.1 779 756 195.3

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