ASTROSAT CZTI

Data Quality Report

Orbit 46789

Creation date: 2024-06-27T23:27:40.070824
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_053T01_9000006266_46789cztM0_level2.fits modeM0/AS1A13_053T01_9000006266_46789cztM0_level2_quad_clean.evt
Size (bytes)517,043,52099,385,920
Size493.1 MB 94.8 MB
Events in quadrant A6,005,423664,369
Events in quadrant B3,913,903684,326
Events in quadrant C2,764,095666,422
Events in quadrant D5,962,111549,928

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216401
B0157041
C0130531
D0220801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63661732.717562%
B63661392.183475%
C6366240.377003%
D636784813.318674%

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 7346 6366 57 57 0.78% 0.90%
B 7346 6366 86 86 1.17% 1.35%
C 7346 6366 13 13 0.18% 0.20%
D 7346 6366 815 815 11.09% 12.80%

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 3131537 21855.87 687 671 143.3
A 8 255 88430 612.63 687 671 143.3
A 13 248 58359 402.71 687 671 143.3
B 3 112 760240 5651.25 682 661 134.4
B 14 167 220304 1634.14 682 661 134.4
B 5 255 64044 471.57 682 661 134.4
C 14 254 45726 282.91 674 677 159.2
C 1 241 40261 248.59 674 677 159.2
C 12 249 27977 171.45 674 677 159.2
D 13 249 1743272 10812.82 642 622 161.2
D 1 52 1118364 6935.38 642 622 161.2
D 13 138 344945 2136.46 642 622 161.2

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