ASTROSAT CZTI

Data Quality Report

Orbit 42110

Creation date: 2024-06-27T22:37:00.604694
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_044T22_9000005750_42110cztM0_level2.fits modeM0/AS1A12_044T22_9000005750_42110cztM0_level2_quad_clean.evt
Size (bytes)373,106,88087,091,200
Size355.8 MB 83.1 MB
Events in quadrant A5,295,443549,024
Events in quadrant B2,455,511617,413
Events in quadrant C2,535,523586,410
Events in quadrant D3,128,995527,840

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191472
B0106632
C0105492
D0127932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A508457611.329662%
B5084350.688434%
C5084110.216365%
D50841823.579858%

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 6997 5085 433 433 6.19% 8.52%
B 6997 5085 28 28 0.40% 0.55%
C 6997 5085 6 6 0.09% 0.12%
D 6997 5085 165 165 2.36% 3.24%

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 15 222 2601368 22356.31 566 556 116.3
A 10 83 487424 4185.07 566 556 116.3
A 12 189 15011 124.25 566 556 116.3
B 5 255 152549 1343.34 582 566 113.1
B 12 111 14060 119.27 582 566 113.1
B 11 111 12961 109.56 582 566 113.1
C 15 214 223425 1652.35 576 579 134.9
C 8 79 51542 377.88 576 579 134.9
C 7 220 14505 103.26 576 579 134.9
D 12 6 614374 4449.32 565 549 138.0
D 13 249 167085 1207.14 565 549 138.0
D 10 199 69375 498.89 565 549 138.0

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