ASTROSAT CZTI

Data Quality Report

Orbit 22106

Creation date: 2024-06-27T18:36:40.731994
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/AS1A07_007T04_9000003276_22106cztM0_level2.evt modeM0/AS1A07_007T04_9000003276_22106cztM0_level2_quad_clean.evt
Size (bytes)476,939,520100,054,080
Size454.8 MB 95.4 MB
Events in quadrant A3,254,487661,051
Events in quadrant B3,239,219667,351
Events in quadrant C3,479,479627,515
Events in quadrant D4,020,600612,275

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139061
B0137861
C0144931
D0163701

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66321231.854644%
B66321301.960193%
C66322694.056092%
D66323164.764777%

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 7147 6634 18 18 0.25% 0.27%
B 7147 6634 2 2 0.03% 0.03%
C 7147 6634 104 104 1.46% 1.57%
D 7147 6634 162 162 2.27% 2.44%

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 5 16 86906 521.27 822 805 165.2
A 13 254 10438 58.32 822 805 165.2
A 0 226 7214 38.8 822 805 165.2
B 12 111 18862 115.42 817 798 156.5
B 11 111 16693 101.56 817 798 156.5
B 0 197 15560 94.32 817 798 156.5
C 10 22 288501 1557.37 784 787 184.7
C 14 238 122543 659.05 784 787 184.7
C 5 4 6775 32.41 784 787 184.7
D 2 133 597145 3082.74 796 772 193.5
D 11 176 170421 876.94 796 772 193.5
D 1 52 103143 529.17 796 772 193.5

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