ASTROSAT CZTI

Data Quality Report

Orbit 32054

Creation date: 2024-06-27T20:35:55.307760
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/AS1T04_046T01_9000004680_32054cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32054cztM0_level2_quad_clean.evt
Size (bytes)583,453,44097,188,480
Size556.4 MB 92.7 MB
Events in quadrant A3,168,910639,365
Events in quadrant B5,378,042629,559
Events in quadrant C3,745,827613,511
Events in quadrant D4,915,720586,059

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139011
B0209131
C0157851
D0191091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6818140.205339%
B6819821.202522%
C681978311.482622%
D68192453.592902%

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 7263 6819 0 0 0.00% 0.00%
B 7264 6819 13 13 0.18% 0.19%
C 7264 6820 6 6 0.08% 0.09%
D 7264 6820 237 237 3.26% 3.48%

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 13 254 13817 78.88 817 800 165.0
A 13 6 9889 55.08 817 800 165.0
A 3 137 8151 44.55 817 800 165.0
B 6 159 1997731 12893.08 806 786 154.9
B 0 190 74445 475.57 806 786 154.9
B 10 245 54235 345.09 806 786 154.9
C 14 238 341771 1964.21 735 739 173.6
C 14 254 282802 1624.57 735 739 173.6
C 3 233 129622 742.32 735 739 173.6
D 8 195 1186322 6400.57 770 746 185.2
D 12 218 687063 3705.22 770 746 185.2
D 2 250 44125 234.19 770 746 185.2

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