ASTROSAT CZTI

Data Quality Report

Orbit 29314

Creation date: 2024-06-27T20:02:54.827617
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/AS1A10_083T01_9000004214_29314cztM0_level2.evt modeM0/AS1A10_083T01_9000004214_29314cztM0_level2_quad_clean.evt
Size (bytes)824,947,20084,712,320
Size786.7 MB 80.8 MB
Events in quadrant A3,650,815551,825
Events in quadrant B3,699,723560,589
Events in quadrant C10,980,804478,649
Events in quadrant D6,203,278509,369

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148841
B0149331
C0372701
D0231941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66571582.373441%
B66571542.313354%
C6657268640.348505%
D66573425.137449%

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 7617 6658 21 21 0.28% 0.32%
B 7617 6658 29 29 0.38% 0.44%
C 7617 6658 1888 1888 24.79% 28.36%
D 7617 6658 265 265 3.48% 3.98%

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 13 166939 980.9 849 831 169.3
A 14 235 110242 646.09 849 831 169.3
A 15 174 68133 397.43 849 831 169.3
B 5 255 146735 944.97 837 819 154.4
B 0 190 146562 943.85 837 819 154.4
B 3 209 44778 284.68 837 819 154.4
C 3 233 7951981 46688.9 738 742 170.3
C 14 238 117817 687.45 738 742 170.3
C 2 114 14910 83.19 738 742 170.3
D 1 52 1635041 8377.29 817 797 195.1
D 8 195 766425 3924.68 817 797 195.1
D 2 250 271608 1388.2 817 797 195.1

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