ASTROSAT CZTI

Data Quality Report

Orbit 03732

Creation date: 2024-06-27T14:32:57.815389
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/AS1G05_248T01_9000000486_03732cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03732cztM0_level2_quad_clean.evt
Size (bytes)478,558,08057,844,800
Size456.4 MB 55.2 MB
Events in quadrant A4,360,165307,158
Events in quadrant B3,600,884337,504
Events in quadrant C2,970,968333,857
Events in quadrant D3,126,633326,364

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171623
B0147972
C0132362
D0137862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63995128.001250%
B63991251.953430%
C6399560.875137%
D6399751.172058%

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 7544 6400 364 364 4.83% 5.69%
B 7544 6399 33 33 0.44% 0.52%
C 7544 6400 0 0 0.00% 0.00%
D 7544 6400 20 20 0.27% 0.31%

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 13 251 1095572 7111.97 757 742 153.9
A 8 15 201049 1301.19 757 742 153.9
A 15 174 72687 467.35 757 742 153.9
B 4 81 187573 1225.34 795 775 152.4
B 15 204 148904 971.68 795 775 152.4
B 3 0 62749 406.53 795 775 152.4
C 12 4 18342 100.0 755 759 175.8
C 13 61 6234 31.14 755 759 175.8
C 1 16 2425 9.47 755 759 175.8
D 13 239 58902 318.26 757 735 182.8
D 2 33 51855 279.7 757 735 182.8
D 14 34 46669 251.33 757 735 182.8

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
Veto Counter