ASTROSAT CZTI

Data Quality Report

Orbit 46811

Creation date: 2024-06-27T23:27:57.881125
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_9000006272_46811cztM0_level2.fits modeM0/AS1C07_001T10_9000006272_46811cztM0_level2_quad_clean.evt
Size (bytes)555,171,840114,033,600
Size529.5 MB 108.8 MB
Events in quadrant A7,115,950726,773
Events in quadrant B4,257,872770,825
Events in quadrant C3,276,626775,565
Events in quadrant D5,341,673677,894

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258772
B0178042
C0153152
D0210742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72054456.176266%
B72062503.469331%
C7205580.804997%
D72053985.523942%

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 8710 7207 78 78 0.90% 1.08%
B 8711 7208 44 44 0.51% 0.61%
C 8710 7207 18 18 0.21% 0.25%
D 8710 7207 280 280 3.21% 3.89%

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 3857650 24346.31 768 750 158.4
A 15 235 77634 485.32 768 750 158.4
A 13 248 75113 469.41 768 750 158.4
B 3 112 516437 3398.68 781 756 151.7
B 5 255 181273 1189.73 781 756 151.7
B 4 171 174183 1143.0 781 756 151.7
C 14 254 182636 995.63 784 785 182.6
C 0 207 23105 122.2 784 785 182.6
C 12 2 6150 29.37 784 785 182.6
D 1 52 1007149 5321.63 762 737 189.1
D 13 249 607437 3208.06 762 737 189.1
D 12 128 305896 1613.6 762 737 189.1

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