ASTROSAT CZTI

Data Quality Report

Orbit 03508

Creation date: 2024-06-27T14:30:18.183416
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_192T01_9000000466_03508cztM0_level2.evt modeM0/AS1G05_192T01_9000000466_03508cztM0_level2_quad_clean.evt
Size (bytes)485,625,60091,537,920
Size463.1 MB 87.3 MB
Events in quadrant A3,474,706566,089
Events in quadrant B3,853,292569,270
Events in quadrant C3,511,510565,930
Events in quadrant D3,356,251547,322

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158471
B0166081
C0160001
D0159511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7524470.624668%
B75241081.435407%
C7524370.491760%
D7525380.504983%

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 7524 7524 3 3 0.04% 0.04%
B 7524 7524 5 5 0.07% 0.07%
C 7524 7524 3 3 0.04% 0.04%
D 7525 7525 19 19 0.25% 0.25%

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 7 16 25187 132.66 879 859 183.4
A 0 118 23907 125.68 879 859 183.4
A 8 15 16115 83.19 879 859 183.4
B 15 204 206495 1163.3 896 873 176.8
B 4 200 75893 424.42 896 873 176.8
B 4 81 40472 224.03 896 873 176.8
C 1 192 77846 375.86 864 867 204.8
C 1 16 27661 130.82 864 867 204.8
C 7 220 12545 57.02 864 867 204.8
D 13 223 52817 248.64 853 829 209.1
D 9 102 30696 142.84 853 829 209.1
D 5 233 19999 91.68 853 829 209.1

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