ASTROSAT CZTI

Data Quality Report

Orbit 45217

Creation date: 2024-06-27T23:10:48.703364
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_049T07_9000006056_45217cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45217cztM0_level2_quad_clean.evt
Size (bytes)579,648,960117,253,440
Size552.8 MB 111.8 MB
Events in quadrant A6,181,463763,381
Events in quadrant B4,293,597800,085
Events in quadrant C4,122,788786,215
Events in quadrant D6,278,279679,954

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237880
B0176360
C0177610
D0237380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74844285.718867%
B74843284.382683%
C74852523.366733%
D74857199.605878%

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 7484 7484 99 99 1.32% 1.32%
B 7484 7484 69 69 0.92% 0.92%
C 7485 7485 103 103 1.38% 1.38%
D 7485 7485 614 614 8.20% 8.20%

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 2475754 13704.1 857 835 180.6
A 13 248 291385 1608.83 857 835 180.6
A 15 174 49189 267.75 857 835 180.6
B 3 112 498177 2895.07 859 830 171.8
B 4 171 147312 852.67 859 830 171.8
B 5 32 115591 668.03 859 830 171.8
C 12 2 510916 2548.89 849 850 200.1
C 1 3 269797 1343.97 849 850 200.1
C 2 14 12479 58.11 849 850 200.1
D 13 249 1538275 7242.36 836 807 212.3
D 5 235 360968 1696.57 836 807 212.3
D 2 249 318153 1494.88 836 807 212.3

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