ASTROSAT CZTI

Data Quality Report

Orbit 09784

Creation date: 2024-06-27T15:50:36.778831
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/AS1A03_080T01_9000001392_09784cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09784cztM0_level2_quad_clean.evt
Size (bytes)442,676,16076,564,800
Size422.2 MB 73.0 MB
Events in quadrant A3,053,336467,298
Events in quadrant B3,286,128477,959
Events in quadrant C3,130,934479,708
Events in quadrant D3,507,158453,085

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129383
B0135532
C0131502
D0146182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6311340.538742%
B6311891.410236%
C6311460.728886%
D6311911.441927%

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 7641 6312 0 0 0.00% 0.00%
B 7641 6312 24 24 0.31% 0.38%
C 7641 6312 10 10 0.13% 0.16%
D 7641 6312 34 34 0.44% 0.54%

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 13 251 13924 83.81 787 772 156.9
A 0 226 7314 41.69 787 772 156.9
A 12 194 6329 35.41 787 772 156.9
B 4 239 117944 789.58 798 781 148.4
B 0 214 27355 179.09 798 781 148.4
B 4 173 16138 103.49 798 781 148.4
C 14 234 74828 414.89 782 788 178.5
C 13 61 5948 28.91 782 788 178.5
C 14 67 2566 9.96 782 788 178.5
D 2 152 223733 1214.98 766 750 183.5
D 1 52 166000 900.41 766 750 183.5
D 2 14 105966 573.3 766 750 183.5

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