ASTROSAT CZTI

Data Quality Report

Orbit 03930

Creation date: 2024-06-27T14:35:22.038354
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_03930cztM0_level2.evt modeM0/AS1G05_172T01_9000000502_03930cztM0_level2_quad_clean.evt
Size (bytes)437,448,96067,965,120
Size417.2 MB 64.8 MB
Events in quadrant A2,818,013416,305
Events in quadrant B3,750,108410,200
Events in quadrant C2,630,543414,112
Events in quadrant D3,632,802388,912

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01262
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01271325
B01511332
C01246414
D01541331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6129621.011584%
B6128781.272846%
C6133130.211968%
D61302894.714519%

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 6569 6140 2 2 0.03% 0.03%
B 6569 6140 9 9 0.14% 0.15%
C 6569 6140 0 0 0.00% 0.00%
D 6569 6140 206 206 3.14% 3.36%

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 0 118 53600 368.26 695 680 143.7
A 0 50 30339 206.39 695 680 143.7
A 15 174 12902 85.05 695 680 143.7
B 3 0 717912 5291.77 696 679 135.5
B 15 204 94323 690.91 696 679 135.5
B 14 167 84399 617.69 696 679 135.5
C 10 65 5911 33.29 671 673 157.4
C 13 61 5602 31.32 671 673 157.4
C 14 238 1858 7.53 671 673 157.4
D 2 232 670412 4213.26 657 637 159.0
D 1 7 179474 1124.98 657 637 159.0
D 4 160 169420 1061.74 657 637 159.0

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