ASTROSAT CZTI

Data Quality Report

Orbit 40010

Creation date: 2024-06-27T22:11:14.423405
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_40010cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40010cztM0_level2_quad_clean.evt
Size (bytes)302,901,12091,555,200
Size288.9 MB 87.3 MB
Events in quadrant A2,856,910614,876
Events in quadrant B2,775,231638,341
Events in quadrant C2,498,780613,490
Events in quadrant D2,683,237547,834

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117063
B0116352
C0105512
D0117672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5108490.959280%
B51081082.114330%
C5108160.313234%
D51081062.075176%

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 7079 5109 31 31 0.44% 0.61%
B 7079 5109 74 74 1.05% 1.45%
C 7079 5109 13 13 0.18% 0.25%
D 7079 5109 82 82 1.16% 1.61%

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 430419 3681.13 574 562 116.8
A 13 248 175870 1501.27 574 562 116.8
A 6 10 11496 93.63 574 562 116.8
B 4 171 360939 3259.46 578 563 110.6
B 6 203 128609 1158.12 578 563 110.6
B 12 111 13509 117.09 578 563 110.6
C 15 214 212556 1598.09 566 572 132.6
C 0 10 32649 241.82 566 572 132.6
C 10 20 24120 177.52 566 572 132.6
D 2 250 239450 1772.45 552 537 134.8
D 12 227 170875 1263.7 552 537 134.8
D 13 249 112737 832.39 552 537 134.8

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