ASTROSAT CZTI

Data Quality Report

Orbit 45805

Creation date: 2024-06-27T23:16:21.914219
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_088T01_9000006126_45805cztM0_level2.fits modeM0/AS1T05_088T01_9000006126_45805cztM0_level2_quad_clean.evt
Size (bytes)758,856,96093,755,520
Size723.7 MB 89.4 MB
Events in quadrant A5,616,233685,122
Events in quadrant B6,894,062644,661
Events in quadrant C3,001,108694,026
Events in quadrant D12,096,360378,598

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209841
B0249471
C0133521
D0402772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62491772.832453%
B625096515.440000%
C6250651.040000%
D6249297847.655625%

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 7334 6250 117 117 1.60% 1.87%
B 7335 6251 576 576 7.85% 9.21%
C 7335 6251 48 48 0.65% 0.77%
D 7334 6250 2987 2987 40.73% 47.79%

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 2548240 17806.62 691 677 143.1
A 15 14 333858 2328.82 691 677 143.1
A 13 248 41013 281.94 691 677 143.1
B 3 112 3903429 30225.78 668 649 129.1
B 0 171 122909 946.86 668 649 129.1
B 4 158 55910 427.98 668 649 129.1
C 12 2 234315 1421.66 697 699 164.3
C 2 14 19152 112.29 697 699 164.3
C 12 250 16473 95.99 697 699 164.3
D 11 241 7044228 46946.65 585 566 150.0
D 1 52 1570865 10466.18 585 566 150.0
D 12 2 542735 3613.6 585 566 150.0

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