ASTROSAT CZTI

Data Quality Report

Orbit 47421

Creation date: 2024-07-05T18:07:30.798399
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/AS1A13_053T01_9000006326_47421cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47421cztM0_level2_quad_clean.evt
Size (bytes)533,534,400124,424,640
Size508.8 MB 118.7 MB
Events in quadrant A7,745,717818,931
Events in quadrant B3,938,202846,673
Events in quadrant C3,560,410815,665
Events in quadrant D3,901,090744,345

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281800
B0172010
C0162600
D0174030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77902783.568678%
B77901501.925546%
C7790310.397946%
D77911031.322038%

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 7790 7790 137 137 1.76% 1.76%
B 7790 7790 64 64 0.82% 0.82%
C 7790 7790 16 16 0.21% 0.21%
D 7791 7791 82 82 1.05% 1.05%

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 10 83 3856692 21592.27 852 832 178.6
A 9 191 596653 3336.51 852 832 178.6
A 3 137 9975 51.2 852 832 178.6
B 5 32 284122 1676.9 854 825 168.9
B 5 255 182081 1072.9 854 825 168.9
B 0 200 23839 136.23 854 825 168.9
C 12 250 67103 330.92 853 856 200.2
C 0 207 59285 291.87 853 856 200.2
C 1 3 55122 271.07 853 856 200.2
D 2 249 451367 2136.55 846 816 210.9
D 2 165 108227 509.35 846 816 210.9
D 2 234 40068 186.14 846 816 210.9

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