ASTROSAT CZTI

Data Quality Report

Orbit 03919

Creation date: 2024-06-27T14:35:12.969973
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_172T01_9000000502_03919cztM0_level2.evt modeM0/AS1G05_172T01_9000000502_03919cztM0_level2_quad_clean.evt
Size (bytes)498,548,16071,611,200
Size475.5 MB 68.3 MB
Events in quadrant A3,883,715432,054
Events in quadrant B3,684,549435,816
Events in quadrant C2,791,754430,628
Events in quadrant D4,294,234412,904

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157843
B0151242
C0132502
D0172612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65541021.556301%
B6554250.381446%
C655450.076289%
D65541462.227647%

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 7654 6555 80 80 1.05% 1.22%
B 7654 6555 4 4 0.05% 0.06%
C 7654 6555 0 0 0.00% 0.00%
D 7654 6555 141 141 1.84% 2.15%

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 8 15 604326 3997.32 736 722 151.0
A 0 50 255380 1686.45 736 722 151.0
A 0 118 133093 876.62 736 722 151.0
B 15 204 717603 4956.31 749 732 144.6
B 0 229 16781 110.96 749 732 144.6
B 14 167 16317 107.75 749 732 144.6
C 10 65 17086 98.84 708 710 165.7
C 1 16 6169 32.95 708 710 165.7
C 13 61 5997 31.91 708 710 165.7
D 2 63 934438 5498.17 698 677 169.8
D 2 232 369965 2174.44 698 677 169.8
D 9 82 112021 655.62 698 677 169.8

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