ASTROSAT CZTI

Data Quality Report

Orbit 41396

Creation date: 2024-06-27T22:28:31.534280
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_105T01_9000005662_41396cztM0_level2.fits modeM0/AS1T05_105T01_9000005662_41396cztM0_level2_quad_clean.evt
Size (bytes)287,631,36056,753,280
Size274.3 MB 54.1 MB
Events in quadrant A1,982,219397,127
Events in quadrant B1,651,017406,764
Events in quadrant C1,918,187373,030
Events in quadrant D4,812,245284,902

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079551
B073581
C079471
D0167621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3626310.854937%
B362670.193050%
C3626982.702703%
D362692425.482625%

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 3626 3626 17 17 0.47% 0.47%
B 3626 3626 1 1 0.03% 0.03%
C 3626 3626 95 95 2.62% 2.62%
D 3626 3626 782 782 21.57% 21.57%

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 323241 3784.15 401 392 85.3
A 2 79 50749 590.24 401 392 85.3
A 13 248 44481 516.77 401 392 85.3
B 0 190 44454 556.86 398 386 79.1
B 5 255 12950 158.76 398 386 79.1
B 12 111 9841 119.48 398 386 79.1
C 0 10 255848 2783.68 385 387 91.8
C 15 214 151008 1641.27 385 387 91.8
C 8 222 5932 60.42 385 387 91.8
D 1 52 1967072 21863.94 357 345 90.0
D 2 249 568329 6314.23 357 345 90.0
D 5 222 375882 4174.81 357 345 90.0

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