ASTROSAT CZTI

Data Quality Report

Orbit 48529

Creation date: 2024-09-18T03:12:14.883340
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_037T01_9000006436_48529cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48529cztM0_level2_quad_clean.evt
Size (bytes)485,418,240104,843,520
Size462.9 MB 100.0 MB
Events in quadrant A7,192,050686,589
Events in quadrant B3,194,821722,667
Events in quadrant C2,795,418699,354
Events in quadrant D4,263,598596,624

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02606234
B0145126
C0137038
D01788617

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101
B0100
C0101
D0101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67302864.249629%
B6733851.262439%
C6733150.222783%
D67325047.486631%

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 7635 6734 125 125 1.64% 1.86%
B 7634 6735 32 32 0.42% 0.48%
C 7635 6736 5 5 0.07% 0.07%
D 7634 6735 414 414 5.42% 6.15%

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 10 83 4275679 29182.5 698 684 146.5
A 12 189 170521 1159.36 698 684 146.5
A 0 31 19248 126.72 698 684 146.5
B 5 255 192243 1382.92 705 684 138.5
B 5 171 103130 739.59 705 684 138.5
B 12 16 51421 366.28 705 684 138.5
C 14 254 24485 143.52 701 704 165.7
C 3 233 18208 105.64 701 704 165.7
C 12 250 10331 58.1 701 704 165.7
D 2 165 1326250 7741.57 679 659 171.2
D 2 249 113442 658.66 679 659 171.2
D 12 233 93497 542.18 679 659 171.2

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