ASTROSAT CZTI

Data Quality Report

Orbit 48533

Creation date: 2024-09-18T09:06:27.208055
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_48533cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48533cztM0_level2_quad_clean.evt
Size (bytes)542,548,80098,902,080
Size517.4 MB 94.3 MB
Events in quadrant A6,797,626669,475
Events in quadrant B2,846,347724,570
Events in quadrant C2,653,187690,246
Events in quadrant D7,290,289464,280

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245665
B0132249
C0129546
D0263264

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63912674.177750%
B6389270.422601%
C639050.078247%
D6391168226.318260%

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 7567 6393 167 167 2.21% 2.61%
B 7567 6392 7 7 0.09% 0.11%
C 7567 6393 1 1 0.01% 0.02%
D 7566 6392 1476 1476 19.51% 23.09%

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 3920121 27877.7 674 661 140.6
A 12 189 178407 1264.24 674 661 140.6
A 0 31 82877 584.77 674 661 140.6
B 5 255 82934 614.54 689 667 133.9
B 12 16 19103 137.71 689 667 133.9
B 12 111 17246 123.84 689 667 133.9
C 12 250 9333 53.96 677 677 160.4
C 14 254 4873 26.16 677 677 160.4
C 3 233 4746 25.36 677 677 160.4
D 2 165 4554699 32376.77 567 550 140.7
D 2 249 505519 3589.97 567 550 140.7
D 2 234 25967 180.7 567 550 140.7

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