ASTROSAT CZTI

Data Quality Report

Orbit 45393

Creation date: 2024-06-27T23:10:43.716129
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_049T06_9000006054_45393cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45393cztM0_level2_quad_clean.evt
Size (bytes)567,872,640123,672,960
Size541.6 MB 117.9 MB
Events in quadrant A6,549,462814,718
Events in quadrant B3,846,867843,405
Events in quadrant C4,001,711818,188
Events in quadrant D6,027,363734,081

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242810
B0167600
C0173460
D0231910

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76811742.265330%
B76811391.809660%
C7681861.119646%
D76813414.439526%

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 7681 7681 8 8 0.10% 0.10%
B 7681 7681 55 55 0.72% 0.72%
C 7681 7681 61 61 0.79% 0.79%
D 7681 7681 309 309 4.02% 4.02%

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 2877776 15735.79 870 848 182.8
A 9 191 295347 1610.81 870 848 182.8
A 13 254 10710 53.94 870 848 182.8
B 0 199 156633 888.99 868 839 175.2
B 5 255 67176 378.53 868 839 175.2
B 15 201 60864 342.51 868 839 175.2
C 14 254 371877 1836.37 849 855 202.0
C 0 239 171630 845.25 849 855 202.0
C 3 233 66832 326.55 849 855 202.0
D 1 52 1902872 8945.16 843 816 212.6
D 2 249 394490 1851.41 843 816 212.6
D 12 233 121021 565.31 843 816 212.6

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