ASTROSAT CZTI

Data Quality Report

Orbit 46213

Creation date: 2024-06-27T23:20:26.816670
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_093T12_9000006184_46213cztM0_level2.fits modeM0/AS1A13_093T12_9000006184_46213cztM0_level2_quad_clean.evt
Size (bytes)532,998,720115,248,960
Size508.3 MB 109.9 MB
Events in quadrant A6,326,803765,680
Events in quadrant B4,316,721804,256
Events in quadrant C3,402,910777,376
Events in quadrant D5,172,371682,885

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232862
B0172672
C0145402
D0198622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65913705.613716%
B65913104.703383%
C65911682.548930%
D65914897.419208%

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 7741 6591 26 26 0.34% 0.39%
B 7741 6591 115 115 1.49% 1.74%
C 7741 6591 52 52 0.67% 0.79%
D 7741 6591 330 330 4.26% 5.01%

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 3189468 19888.86 784 768 160.3
A 9 191 49281 302.59 784 768 160.3
A 13 248 43224 264.81 784 768 160.3
B 3 112 751162 4963.48 783 760 151.2
B 5 255 149069 980.98 783 760 151.2
B 5 172 137669 905.58 783 760 151.2
C 12 2 269289 1487.38 784 788 180.5
C 2 14 29140 157.06 784 788 180.5
C 12 249 15693 82.57 784 788 180.5
D 1 52 1549536 8153.24 766 743 190.0
D 2 249 232202 1218.46 766 743 190.0
D 13 249 110741 579.06 766 743 190.0

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