ASTROSAT CZTI

Data Quality Report

Orbit 06367

Creation date: 2024-06-27T15:06:14.339981
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/AS1A02_124T01_9000000842_06367cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06367cztM0_level2_quad_clean.evt
Size (bytes)452,666,88079,758,720
Size431.7 MB 76.1 MB
Events in quadrant A3,280,853493,835
Events in quadrant B3,300,965502,979
Events in quadrant C3,256,509497,955
Events in quadrant D3,438,327476,486

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135893
B0138282
C0137932
D0142692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6360931.462264%
B63601582.484277%
C6360871.367925%
D63601121.761006%

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 7580 6360 0 0 0.00% 0.00%
B 7580 6360 63 63 0.83% 0.99%
C 7580 6360 2 2 0.03% 0.03%
D 7580 6360 39 39 0.51% 0.61%

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 173697 1088.73 797 781 158.8
A 8 15 22079 134.1 797 781 158.8
A 13 251 12874 76.14 797 781 158.8
B 5 250 172386 1155.57 800 781 148.5
B 0 219 17700 113.93 800 781 148.5
B 12 111 14573 92.87 800 781 148.5
C 4 254 158050 867.39 790 794 181.3
C 9 54 13116 67.97 790 794 181.3
C 13 61 6110 29.32 790 794 181.3
D 2 63 168269 890.74 784 761 188.1
D 2 152 125815 664.99 784 761 188.1
D 13 169 66218 348.08 784 761 188.1

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