ASTROSAT CZTI

Data Quality Report

Orbit 38910

Creation date: 2024-06-27T21:58:03.290902
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_064T01_9000005416_38910cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38910cztM0_level2_quad_clean.evt
Size (bytes)345,182,40095,837,760
Size329.2 MB 91.4 MB
Events in quadrant A3,285,989652,769
Events in quadrant B2,422,816672,234
Events in quadrant C2,651,481649,259
Events in quadrant D4,022,952572,844

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129913
B0103692
C0108592
D0154462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5066310.611923%
B506670.138176%
C5066210.414528%
D50662625.171733%

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 7098 5067 19 19 0.27% 0.37%
B 7098 5067 0 0 0.00% 0.00%
C 7098 5067 11 11 0.15% 0.22%
D 7098 5067 243 243 3.42% 4.80%

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 424995 3566.53 592 580 119.0
A 12 16 348021 2919.68 592 580 119.0
A 13 248 118736 992.91 592 580 119.0
B 0 230 43284 386.55 594 580 110.5
B 0 155 17384 152.11 594 580 110.5
B 12 111 13021 112.61 594 580 110.5
C 15 214 223814 1629.08 593 599 137.0
C 14 254 68942 498.78 593 599 137.0
C 0 10 21001 148.9 593 599 137.0
D 2 249 467632 3383.23 576 560 138.1
D 12 235 379629 2745.79 576 560 138.1
D 2 250 320714 2319.03 576 560 138.1

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