ASTROSAT CZTI

Data Quality Report

Orbit 05142

Creation date: 2024-06-27T14:51:53.624304
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_102T01_9000000650_05142cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05142cztM0_level2_quad_clean.evt
Size (bytes)519,324,48090,423,360
Size495.3 MB 86.2 MB
Events in quadrant A3,592,606556,859
Events in quadrant B3,858,544559,761
Events in quadrant C3,422,053561,416
Events in quadrant D4,338,275531,476

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159843
B0164452
C0156422
D0183602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75941051.382671%
B75941021.343166%
C7594500.658415%
D75942252.962865%

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 7884 7596 29 29 0.37% 0.38%
B 7884 7596 4 4 0.05% 0.05%
C 7884 7596 0 0 0.00% 0.00%
D 7884 7596 112 112 1.42% 1.47%

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 50 124155 660.46 901 878 186.7
A 12 194 8966 43.33 901 878 186.7
A 0 226 8884 42.89 901 878 186.7
B 8 3 120219 678.76 906 885 175.8
B 15 204 87954 495.24 906 885 175.8
B 4 80 62858 352.49 906 885 175.8
C 1 16 9570 42.71 873 878 203.5
C 13 61 7001 30.09 873 878 203.5
C 14 67 3523 13.0 873 878 203.5
D 12 233 575959 2673.77 872 845 215.1
D 2 33 356111 1651.67 872 845 215.1
D 2 14 32962 149.32 872 845 215.1

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