ASTROSAT CZTI

Data Quality Report

Orbit 10083

Creation date: 2024-06-27T15:54:41.179142
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/AS1A03_044T04_9000001448_10083cztM0_level2.evt modeM0/AS1A03_044T04_9000001448_10083cztM0_level2_quad_clean.evt
Size (bytes)1,039,432,320187,424,640
Size991.3 MB 178.7 MB
Events in quadrant A7,282,8041,158,885
Events in quadrant B7,442,6011,174,088
Events in quadrant C7,044,0681,161,314
Events in quadrant D8,641,6991,096,663

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04585913074
B04616713281
C04492212419
D05239016471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121
B0113
C0124
D0122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0442138
B0441148
C0443122
D044397

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A158081380.872976%
B157531701.079160%
C15873680.428400%
D153522001.302762%

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 23120 18452 3 3 0.01% 0.02%
B 23132 18439 2 2 0.01% 0.01%
C 23131 18570 3 3 0.01% 0.02%
D 23102 18055 85 85 0.37% 0.47%

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 8 118666 313.71 1837 1793 372.5
A 8 15 51982 134.72 1837 1793 372.5
A 4 2 28537 71.79 1837 1793 372.5
B 0 214 122943 339.39 1841 1792 357.0
B 4 239 48871 131.89 1841 1792 357.0
B 0 219 47430 127.85 1841 1792 357.0
C 14 234 18673 40.45 1796 1803 417.1
C 13 61 13236 27.41 1796 1803 417.1
C 14 67 12471 25.58 1796 1803 417.1
D 8 195 837352 1923.75 1716 1673 434.4
D 10 199 531497 1219.66 1716 1673 434.4
D 2 152 244232 558.37 1716 1673 434.4

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