ASTROSAT CZTI

Data Quality Report

Orbit 46533

Creation date: 2024-06-27T23:24:21.165042
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_091T05_9000006224_46533cztM0_level2.fits modeM0/AS1A13_091T05_9000006224_46533cztM0_level2_quad_clean.evt
Size (bytes)493,153,920113,855,040
Size470.3 MB 108.6 MB
Events in quadrant A6,790,210745,878
Events in quadrant B3,614,540800,438
Events in quadrant C3,185,041757,783
Events in quadrant D4,155,174685,193

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244672
B0147442
C0138712
D0167212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65773104.713395%
B6577951.444428%
C6577300.456135%
D65771382.098221%

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 7812 6577 149 149 1.91% 2.27%
B 7812 6577 3 3 0.04% 0.05%
C 7812 6578 3 3 0.04% 0.05%
D 7812 6578 135 135 1.73% 2.05%

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 3287871 20185.46 781 763 162.8
A 9 191 302863 1855.13 781 763 162.8
A 13 248 166768 1019.4 781 763 162.8
B 5 255 112719 721.0 790 768 155.3
B 4 171 112614 720.32 790 768 155.3
B 3 112 111340 712.12 790 768 155.3
C 9 54 85207 465.99 771 777 181.2
C 14 254 31890 171.72 771 777 181.2
C 12 249 20983 111.52 771 777 181.2
D 13 249 954738 5034.49 760 738 189.5
D 1 52 86064 450.29 760 738 189.5
D 8 176 43530 225.82 760 738 189.5

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