ASTROSAT CZTI

Data Quality Report

Orbit 17654

Creation date: 2024-06-27T17:39:10.176410
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/AS1A05_118T02_9000002612_17654cztM0_level2.evt modeM0/AS1A05_118T02_9000002612_17654cztM0_level2_quad_clean.evt
Size (bytes)459,524,16097,669,440
Size438.2 MB 93.1 MB
Events in quadrant A3,058,513638,131
Events in quadrant B3,225,738647,775
Events in quadrant C3,334,617619,792
Events in quadrant D3,851,711594,392

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134862
B0139822
C0140932
D0159192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6569240.365352%
B6569500.761151%
C6569640.974273%
D65691802.740143%

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 7614 6570 0 0 0.00% 0.00%
B 7614 6570 0 0 0.00% 0.00%
C 7614 6570 0 0 0.00% 0.00%
D 7614 6570 149 149 1.96% 2.27%

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 14 237 16009 94.49 791 774 161.2
A 0 226 6877 37.85 791 774 161.2
A 3 137 5958 32.15 791 774 161.2
B 0 230 33336 214.13 795 777 152.1
B 10 245 22657 143.9 795 777 152.1
B 14 1 22012 139.66 795 777 152.1
C 3 233 247826 1384.35 760 765 178.5
C 14 238 116487 648.42 760 765 178.5
C 5 218 6139 30.11 760 765 178.5
D 1 52 829724 4504.49 755 731 184.0
D 13 189 93018 501.46 755 731 184.0
D 2 152 59647 320.13 755 731 184.0

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