ASTROSAT CZTI

Data Quality Report

Orbit 47215

Creation date: 2024-06-27T23:32:57.712420
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_019T01_9000006302_47215cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47215cztM0_level2_quad_clean.evt
Size (bytes)610,113,60098,997,120
Size581.8 MB 94.4 MB
Events in quadrant A6,468,222675,279
Events in quadrant B3,228,336717,591
Events in quadrant C2,822,889680,618
Events in quadrant D9,603,698507,420

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235901
B0133181
C0124902
D0326211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59692784.657397%
B59701202.010050%
C5969340.569610%
D5969155526.051265%

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 7180 5969 61 61 0.85% 1.02%
B 7181 5970 19 19 0.26% 0.32%
C 7180 5970 3 3 0.04% 0.05%
D 7180 5969 1826 1826 25.43% 30.59%

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 3221339 21900.97 707 693 147.1
A 9 191 236419 1602.98 707 693 147.1
A 15 235 218211 1479.16 707 693 147.1
B 15 201 138619 981.0 714 695 140.6
B 5 32 105150 742.95 714 695 140.6
B 0 190 87975 620.79 714 695 140.6
C 14 254 66272 401.01 695 697 163.5
C 9 237 21796 129.03 695 697 163.5
C 3 233 15302 89.31 695 697 163.5
D 6 112 6949342 42136.36 653 632 164.9
D 12 233 52478 314.39 653 632 164.9
D 7 55 39452 235.4 653 632 164.9

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