ASTROSAT CZTI

Data Quality Report

Orbit 11538

Creation date: 2024-06-27T16:14:27.596916
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/AS1G08_009T01_9000001692_11538cztM0_level2.evt modeM0/AS1G08_009T01_9000001692_11538cztM0_level2_quad_clean.evt
Size (bytes)571,049,28085,000,320
Size544.6 MB 81.1 MB
Events in quadrant A5,092,098522,336
Events in quadrant B4,375,724541,947
Events in quadrant C2,982,346542,401
Events in quadrant D4,394,616504,186

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196752
B0173481
C0136031
D0176001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66314366.575177%
B66312804.222591%
C6631350.527824%
D66313805.730659%

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 7552 6633 188 188 2.49% 2.83%
B 7552 6633 127 127 1.68% 1.91%
C 7552 6633 0 0 0.00% 0.00%
D 7552 6633 283 283 3.75% 4.27%

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 5 1723299 10795.57 775 758 159.6
A 9 143 108526 675.41 775 758 159.6
A 1 162 103274 642.49 775 758 159.6
B 4 239 972626 6397.58 789 772 151.9
B 15 204 201970 1324.46 789 772 151.9
B 11 51 64062 416.63 789 772 151.9
C 13 61 5614 27.13 764 769 178.6
C 14 234 2879 11.81 764 769 178.6
C 3 202 1908 6.38 764 769 178.6
D 1 52 923328 5113.02 750 731 180.4
D 10 157 335045 1852.76 750 731 180.4
D 2 120 119876 660.3 750 731 180.4

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