ASTROSAT CZTI

Data Quality Report

Orbit 03429

Creation date: 2024-06-27T14:28:52.894065
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_167T01_9000000456_03429cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03429cztM0_level2_quad_clean.evt
Size (bytes)536,944,32084,104,640
Size512.1 MB 80.2 MB
Events in quadrant A3,807,347537,100
Events in quadrant B3,682,033542,561
Events in quadrant C5,198,841514,105
Events in quadrant D3,149,182516,554

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152763
B0152192
C0196182
D0134532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62581211.933525%
B62581071.709811%
C625879712.735698%
D6258741.182486%

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 7533 6259 41 41 0.54% 0.66%
B 7533 6259 23 23 0.31% 0.37%
C 7533 6259 521 521 6.92% 8.32%
D 7533 6259 16 16 0.21% 0.26%

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 8 15 434302 2665.38 804 790 162.6
A 14 249 244352 1497.5 804 790 162.6
A 0 118 15913 92.98 804 790 162.6
B 15 204 281961 1798.87 818 801 156.3
B 2 249 149054 948.53 818 801 156.3
B 6 203 47670 299.87 818 801 156.3
C 7 220 1941025 11132.79 751 758 174.3
C 1 192 250192 1431.19 751 758 174.3
C 15 208 44730 252.3 751 758 174.3
D 9 85 49804 261.66 787 768 187.4
D 13 223 43929 230.31 787 768 187.4
D 12 246 37506 196.04 787 768 187.4

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