ASTROSAT CZTI

Data Quality Report

Orbit 40532

Creation date: 2024-06-27T22:17:12.097473
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/AS1T05_070T01_9000005544_40532cztM0_level2.fits modeM0/AS1T05_070T01_9000005544_40532cztM0_level2_quad_clean.evt
Size (bytes)331,868,16091,203,840
Size316.5 MB 87.0 MB
Events in quadrant A2,990,018634,449
Events in quadrant B2,464,309657,626
Events in quadrant C2,813,628618,456
Events in quadrant D3,603,631480,497

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119883
B0108422
C0116012
D0142422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5292120.226757%
B5292190.359033%
C5292480.907029%
D529292717.517007%

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 7295 5293 3 3 0.04% 0.06%
B 7295 5293 6 6 0.08% 0.11%
C 7295 5293 41 41 0.56% 0.77%
D 7295 5293 293 293 4.02% 5.54%

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 504766 4099.61 601 591 123.0
A 12 189 65474 527.58 601 591 123.0
A 2 79 54613 439.27 601 591 123.0
B 3 112 56529 487.21 598 583 114.8
B 15 85 22722 192.8 598 583 114.8
B 0 230 20289 171.61 598 583 114.8
C 14 254 276720 2023.89 578 582 136.4
C 15 214 234333 1713.22 578 582 136.4
C 0 10 34176 246.22 578 582 136.4
D 2 250 663869 5108.18 521 506 129.9
D 12 128 341216 2623.62 521 506 129.9
D 12 227 182974 1405.08 521 506 129.9

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