ASTROSAT CZTI

Data Quality Report

Orbit 03160

Creation date: 2024-06-27T14:25:22.974528
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_218T02_9000000434_03160cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03160cztM0_level2_quad_clean.evt
Size (bytes)504,627,84097,629,120
Size481.3 MB 93.1 MB
Events in quadrant A3,522,319625,293
Events in quadrant B3,618,822629,698
Events in quadrant C3,756,644608,211
Events in quadrant D3,896,104592,071

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156241
B0157760
C0163810
D0168230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7197881.222732%
B71971031.431152%
C71972263.140197%
D71971822.528831%

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 7197 7197 21 21 0.29% 0.29%
B 7197 7197 20 20 0.28% 0.28%
C 7196 7196 160 160 2.22% 2.22%
D 7197 7197 120 120 1.67% 1.67%

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 0 149 138443 809.49 821 800 170.0
A 12 247 126067 736.71 821 800 170.0
A 14 249 44606 257.63 821 800 170.0
B 4 81 146707 908.35 832 812 160.6
B 2 249 74600 459.41 832 812 160.6
B 0 219 46162 282.35 832 812 160.6
C 1 192 529007 2848.59 793 794 185.4
C 14 223 45647 241.89 793 794 185.4
C 6 80 32136 169.02 793 794 185.4
D 2 136 320088 1640.74 796 771 194.6
D 13 223 183904 940.99 796 771 194.6
D 9 65 101870 519.47 796 771 194.6

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