ASTROSAT CZTI

Data Quality Report

Orbit 08552

Creation date: 2024-06-27T15:34:09.784155
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/AS1G07_060T01_9000001200_08552cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08552cztM0_level2_quad_clean.evt
Size (bytes)412,401,60088,185,600
Size393.3 MB 84.1 MB
Events in quadrant A2,939,141560,734
Events in quadrant B3,176,512570,630
Events in quadrant C2,870,784560,354
Events in quadrant D3,072,229536,828

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132053
B0136934
C0129812
D0138082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6335130.205209%
B6334861.357752%
C633580.126283%
D6335380.599842%

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 7545 6336 0 0 0.00% 0.00%
B 7545 6336 57 57 0.76% 0.90%
C 7545 6336 0 0 0.00% 0.00%
D 7545 6336 22 22 0.29% 0.35%

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 15 223 32779 211.03 749 735 151.8
A 15 239 9400 57.07 749 735 151.8
A 0 226 6973 41.08 749 735 151.8
B 10 16 182878 1275.43 753 736 142.8
B 10 252 20456 138.09 753 736 142.8
B 0 214 19482 131.27 753 736 142.8
C 13 61 5514 28.05 734 737 170.3
C 9 54 4665 23.06 734 737 170.3
C 8 222 3786 17.9 734 737 170.3
D 1 52 141641 795.3 724 706 177.2
D 4 95 92762 519.47 724 706 177.2
D 7 71 41551 230.49 724 706 177.2

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