ASTROSAT CZTI

Data Quality Report

Orbit 03984

Creation date: 2024-06-27T14:35:59.761379
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_247T01_9000000512_03984cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03984cztM0_level2_quad_clean.evt
Size (bytes)451,391,040105,900,480
Size430.5 MB 101.0 MB
Events in quadrant A3,524,124678,612
Events in quadrant B3,356,670690,993
Events in quadrant C3,052,622691,701
Events in quadrant D3,272,891670,290

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154472
B0146621
C0140741
D0149021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68223114.558780%
B68221702.491938%
C68221321.934916%
D68221552.272061%

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 7067 6824 125 125 1.77% 1.83%
B 7067 6824 15 15 0.21% 0.22%
C 7067 6824 0 0 0.00% 0.00%
D 7067 6824 13 13 0.18% 0.19%

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 15 236 267227 1719.61 753 734 155.0
A 0 50 144497 927.66 753 734 155.0
A 0 118 99844 639.53 753 734 155.0
B 14 167 239095 1630.03 766 744 146.2
B 15 204 67149 454.13 766 744 146.2
B 7 252 31434 209.88 766 744 146.2
C 9 144 128113 732.96 748 749 173.8
C 13 61 6158 31.13 748 749 173.8
C 3 202 1831 6.23 748 749 173.8
D 2 63 223393 1255.13 742 720 177.4
D 13 239 91155 509.75 742 720 177.4
D 10 246 33360 183.98 742 720 177.4

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