ASTROSAT CZTI

Data Quality Report

Orbit 46563

Creation date: 2024-06-27T23:24:47.797282
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/AS1C03_005T02_9000006230_46563cztM0_level2.fits modeM0/AS1C03_005T02_9000006230_46563cztM0_level2_quad_clean.evt
Size (bytes)480,971,52097,755,840
Size458.7 MB 93.2 MB
Events in quadrant A5,391,334660,389
Events in quadrant B2,979,225690,658
Events in quadrant C2,634,095663,898
Events in quadrant D6,337,474529,203

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196443
B0131611
C0121781
D0229141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59491562.622289%
B5949480.806858%
C5950360.605042%
D5950103417.378151%

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 7019 5949 2 2 0.03% 0.03%
B 7019 5949 5 5 0.07% 0.08%
C 7020 5950 0 0 0.00% 0.00%
D 7020 5950 878 878 12.51% 14.76%

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 2733299 20206.53 657 643 135.2
A 9 191 85733 629.19 657 643 135.2
A 13 248 24673 177.69 657 643 135.2
B 15 201 291483 2271.9 657 637 128.0
B 0 245 34468 264.27 657 637 128.0
B 3 112 22269 168.97 657 637 128.0
C 12 2 20640 130.41 657 659 153.2
C 3 233 17213 108.04 657 659 153.2
C 1 3 15855 99.18 657 659 153.2
D 13 138 1624793 10400.42 617 596 156.2
D 1 52 1099003 7033.56 617 596 156.2
D 13 249 616727 3945.35 617 596 156.2

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