ASTROSAT CZTI

Data Quality Report

Orbit 04753

Creation date: 2024-06-27T14:46:22.833770
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/AS1G05_195T01_9000000598_04753cztM0_level2.evt modeM0/AS1G05_195T01_9000000598_04753cztM0_level2_quad_clean.evt
Size (bytes)521,530,56071,884,800
Size497.4 MB 68.6 MB
Events in quadrant A3,113,043425,192
Events in quadrant B4,158,916419,428
Events in quadrant C4,344,230428,516
Events in quadrant D3,693,802406,573

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145532
B0171411
C0180731
D0164881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7138600.840572%
B71382132.984029%
C71384055.673858%
D71382223.110115%

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 7508 7139 0 0 0.00% 0.00%
B 7508 7139 110 110 1.47% 1.54%
C 7508 7139 315 315 4.20% 4.41%
D 7508 7139 106 106 1.41% 1.48%

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 25663 150.44 799 782 165.4
A 0 50 12136 68.65 799 782 165.4
A 12 194 8152 44.56 799 782 165.4
B 10 16 693859 4483.21 803 784 154.6
B 14 167 172113 1108.25 803 784 154.6
B 4 80 95503 612.7 803 784 154.6
C 14 48 1290240 7198.53 771 773 179.1
C 8 208 24145 130.48 771 773 179.1
C 12 4 13563 71.4 771 773 179.1
D 13 235 565100 3050.86 764 737 185.0
D 2 136 127556 685.56 764 737 185.0
D 13 239 26845 141.13 764 737 185.0

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