ASTROSAT CZTI

Data Quality Report

Orbit 06984

Creation date: 2024-06-27T15:14:03.383162
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_090T02_9000000956_06984cztM0_level2.evt modeM0/AS1A02_090T02_9000000956_06984cztM0_level2_quad_clean.evt
Size (bytes)555,638,40099,555,840
Size529.9 MB 94.9 MB
Events in quadrant A3,902,524604,322
Events in quadrant B4,058,110613,487
Events in quadrant C3,868,316610,030
Events in quadrant D4,412,033587,226

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176592
B0180221
C0176491
D0188071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8642580.671141%
B8642810.937283%
C8642360.416570%
D8642600.694284%

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 8957 8643 0 0 0.00% 0.00%
B 8957 8643 2 2 0.02% 0.02%
C 8957 8643 0 0 0.00% 0.00%
D 8957 8643 11 11 0.12% 0.13%

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 0 226 9818 42.52 1009 986 207.7
A 12 194 9301 40.03 1009 986 207.7
A 8 15 7795 32.78 1009 986 207.7
B 0 228 35345 175.64 1012 984 195.6
B 0 214 26031 128.03 1012 984 195.6
B 4 80 19888 96.63 1012 984 195.6
C 7 247 34412 147.32 978 983 226.9
C 13 61 7756 29.85 978 983 226.9
C 8 128 7105 26.98 978 983 226.9
D 8 195 463573 1919.19 978 947 241.1
D 14 35 77493 317.55 978 947 241.1
D 2 136 58564 239.02 978 947 241.1

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