ASTROSAT CZTI

Data Quality Report

Orbit 03793

Creation date: 2024-06-27T14:33:44.749798
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/AS1G05_152T03_9000000488_03793cztM0_level2.evt modeM0/AS1G05_152T03_9000000488_03793cztM0_level2_quad_clean.evt
Size (bytes)524,093,76080,003,520
Size499.8 MB 76.3 MB
Events in quadrant A3,501,623507,578
Events in quadrant B3,805,493508,432
Events in quadrant C4,134,344482,328
Events in quadrant D3,990,483471,512

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144013
B0152192
C0165302
D0161692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64871822.805611%
B64872003.083089%
C64874016.181594%
D64872754.239248%

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 7672 6487 24 24 0.31% 0.37%
B 7672 6487 37 37 0.48% 0.57%
C 7672 6487 285 285 3.71% 4.39%
D 7672 6487 166 166 2.16% 2.56%

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 0 118 160824 977.66 809 790 163.7
A 13 251 86737 525.06 809 790 163.7
A 13 164 63936 385.77 809 790 163.7
B 15 204 279034 1781.52 814 796 156.2
B 14 167 190085 1211.99 814 796 156.2
B 0 173 68401 432.87 814 796 156.2
C 2 53 1081080 6128.07 764 765 176.3
C 1 16 56688 317.22 764 765 176.3
C 12 4 9554 49.86 764 765 176.3
D 8 112 742074 4029.99 770 746 184.0
D 1 84 114180 616.65 770 746 184.0
D 13 223 49082 262.76 770 746 184.0

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
Veto Counter