ASTROSAT CZTI

Data Quality Report

Orbit 46584

Creation date: 2024-06-27T23:25:03.643812
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/AS1C07_001T10_9000006232_46584cztM0_level2.fits modeM0/AS1C07_001T10_9000006232_46584cztM0_level2_quad_clean.evt
Size (bytes)642,582,720109,555,200
Size612.8 MB 104.5 MB
Events in quadrant A6,397,310740,376
Events in quadrant B3,493,156768,931
Events in quadrant C3,266,393753,125
Events in quadrant D10,076,569557,262

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02343314
B0154945
C0150935
D03499319

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71382503.502382%
B71412052.870746%
C7142841.176141%
D7140173924.355742%

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 7144 7143 5 5 0.07% 0.07%
B 7145 7144 50 50 0.70% 0.70%
C 7145 7144 5 5 0.07% 0.07%
D 7145 7144 1592 1592 22.28% 22.28%

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 3270408 19792.89 789 770 165.2
A 7 3 32381 191.36 789 770 165.2
A 13 254 13533 77.26 789 770 165.2
B 15 201 125363 801.42 787 762 155.5
B 5 32 101244 646.29 787 762 155.5
B 4 158 64938 412.77 787 762 155.5
C 14 254 90121 488.01 784 787 183.1
C 0 207 60364 325.45 784 787 183.1
C 3 233 30161 160.46 784 787 183.1
D 13 138 4415035 24217.18 727 703 182.3
D 1 52 963188 5280.23 727 703 182.3
D 13 249 698692 3829.19 727 703 182.3

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