ASTROSAT CZTI

Data Quality Report

Orbit 46534

Creation date: 2024-06-27T23:24:22.337298
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/AS1A13_091T05_9000006224_46534cztM0_level2.fits modeM0/AS1A13_091T05_9000006224_46534cztM0_level2_quad_clean.evt
Size (bytes)512,712,000111,147,840
Size489.0 MB 106.0 MB
Events in quadrant A6,813,066726,675
Events in quadrant B3,754,403771,918
Events in quadrant C3,272,260737,730
Events in quadrant D4,624,198666,327

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244843
B0153372
C0142652
D0182872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66423905.871725%
B66422013.026197%
C66421221.836796%
D66422533.809094%

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 7662 6642 118 118 1.54% 1.78%
B 7662 6642 13 13 0.17% 0.20%
C 7662 6642 18 18 0.23% 0.27%
D 7662 6642 173 173 2.26% 2.60%

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 3262168 19834.27 789 772 164.4
A 9 191 313952 1904.61 789 772 164.4
A 13 248 151970 919.51 789 772 164.4
B 5 255 187109 1175.79 796 773 158.5
B 4 171 158213 993.46 796 773 158.5
B 3 112 140722 883.09 796 773 158.5
C 14 254 119040 637.16 783 789 185.6
C 9 54 28860 151.25 783 789 185.6
C 3 233 28421 148.89 783 789 185.6
D 13 249 851635 4354.3 774 751 195.4
D 8 176 662292 3385.36 774 751 195.4
D 1 232 44645 224.62 774 751 195.4

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