ASTROSAT CZTI

Data Quality Report

Orbit 06108

Creation date: 2024-06-27T15:02:50.842665
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/AS1G06_033T01_9000000792_06108cztM0_level2.evt modeM0/AS1G06_033T01_9000000792_06108cztM0_level2_quad_clean.evt
Size (bytes)425,185,92077,351,040
Size405.5 MB 73.8 MB
Events in quadrant A2,853,610488,411
Events in quadrant B3,894,935488,667
Events in quadrant C2,745,614489,305
Events in quadrant D2,982,032464,109

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121852
B0153661
C0120531
D0129131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5891220.373451%
B58912073.513835%
C5891160.271601%
D5891300.509251%

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 7256 5893 0 0 0.00% 0.00%
B 7256 5893 148 148 2.04% 2.51%
C 7256 5893 2 2 0.03% 0.03%
D 7256 5893 21 21 0.29% 0.36%

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 8 15 131431 905.53 706 692 144.4
A 12 194 6960 43.41 706 692 144.4
A 0 226 6825 42.48 706 692 144.4
B 3 64 769462 5678.56 710 695 135.4
B 15 204 253081 1864.27 710 695 135.4
B 0 219 37093 268.86 710 695 135.4
C 1 16 36388 219.22 694 699 162.8
C 13 61 5520 29.61 694 699 162.8
C 9 54 3336 16.2 694 699 162.8
D 11 241 120239 705.5 687 667 169.5
D 2 33 95857 561.64 687 667 169.5
D 2 14 60728 354.37 687 667 169.5

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