ASTROSAT CZTI

Data Quality Report

Orbit 32039

Creation date: 2024-06-27T20:35:44.469540
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_32039cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32039cztM0_level2_quad_clean.evt
Size (bytes)622,975,68096,606,720
Size594.1 MB 92.1 MB
Events in quadrant A3,222,068636,302
Events in quadrant B5,285,552625,480
Events in quadrant C5,688,580589,668
Events in quadrant D4,213,993603,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139151
B0206741
C0216671
D0169182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6758130.192365%
B6759851.257582%
C67595087.515905%
D67581472.175200%

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 7158 6759 3 3 0.04% 0.04%
B 7159 6760 27 27 0.38% 0.40%
C 7159 6760 313 313 4.37% 4.63%
D 7158 6759 119 119 1.66% 1.76%

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 15 174 72344 435.67 811 796 164.2
A 13 254 13657 78.31 811 796 164.2
A 13 6 12893 73.66 811 796 164.2
B 6 159 1965176 12848.44 798 778 152.9
B 5 172 113635 738.16 798 778 152.9
B 0 190 29928 190.66 798 778 152.9
C 3 233 1703142 9752.73 744 746 174.6
C 0 10 910355 5210.99 744 746 174.6
C 14 238 121660 692.7 744 746 174.6
D 8 195 601698 3226.35 773 751 186.3
D 2 250 444440 2382.06 773 751 186.3
D 12 218 68398 363.18 773 751 186.3

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