ASTROSAT CZTI

Data Quality Report

Orbit 32696

Creation date: 2024-06-27T20:40:55.302837
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/AS1T04_063T01_9000004724_32696cztM0_level2.evt modeM0/AS1T04_063T01_9000004724_32696cztM0_level2_quad_clean.evt
Size (bytes)786,061,44056,430,720
Size749.6 MB 53.8 MB
Events in quadrant A10,592,176248,716
Events in quadrant B3,202,974373,278
Events in quadrant C4,202,463349,966
Events in quadrant D5,415,332327,873

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0354993
B0132612
C0163212
D0201582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5828294550.531915%
B5828270.463281%
C58282173.723404%
D58284698.047358%

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 9142 5830 2550 2550 27.89% 43.74%
B 9142 5830 14 14 0.15% 0.24%
C 9142 5830 136 136 1.49% 2.33%
D 9142 5830 390 390 4.27% 6.69%

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 15 249 8676301 89466.88 483 474 97.0
A 15 174 7913 76.71 483 474 97.0
A 7 16 7865 76.22 483 474 97.0
B 0 219 118622 872.7 713 697 135.1
B 3 26 94165 691.71 713 697 135.1
B 0 230 71000 520.27 713 697 135.1
C 0 10 1332245 8496.87 672 679 156.7
C 3 233 141902 901.16 672 679 156.7
C 8 35 34616 216.56 672 679 156.7
D 2 249 632834 3992.02 658 644 158.4
D 2 250 496371 3130.31 658 644 158.4
D 12 33 317432 2000.39 658 644 158.4

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