ASTROSAT CZTI

Data Quality Report

Orbit 40045

Creation date: 2024-06-27T22:11:39.415345
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/AS1A12_054T03_9000005516_40045cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40045cztM0_level2_quad_clean.evt
Size (bytes)381,729,60093,427,200
Size364.0 MB 89.1 MB
Events in quadrant A3,549,025618,194
Events in quadrant B3,107,867637,570
Events in quadrant C3,378,556613,078
Events in quadrant D3,644,657555,828

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140443
B0131622
C0137362
D0147782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57881021.762267%
B57881322.280581%
C5788731.261230%
D57881282.211472%

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 7159 5789 74 74 1.03% 1.28%
B 7159 5789 83 83 1.16% 1.43%
C 7159 5789 71 71 0.99% 1.23%
D 7159 5789 125 125 1.75% 2.16%

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 13 248 554579 4300.49 627 614 128.8
A 10 83 492664 3819.83 627 614 128.8
A 2 79 30909 235.18 627 614 128.8
B 4 171 572662 4650.64 624 607 123.0
B 0 230 25624 203.38 624 607 123.0
B 0 221 25583 203.05 624 607 123.0
C 9 187 554747 3801.69 616 620 145.8
C 15 214 242500 1659.46 616 620 145.8
C 14 254 110655 754.92 616 620 145.8
D 12 227 516105 3444.12 611 592 149.7
D 13 249 219777 1464.37 611 592 149.7
D 8 230 164157 1092.77 611 592 149.7

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