ASTROSAT CZTI

Data Quality Report

Orbit 30606

Creation date: 2024-06-27T20:17:35.029317
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/AS1A10_058T03_9000004408_30606cztM0_level2.evt modeM0/AS1A10_058T03_9000004408_30606cztM0_level2_quad_clean.evt
Size (bytes)644,137,92092,113,920
Size614.3 MB 87.8 MB
Events in quadrant A3,229,798619,084
Events in quadrant B5,265,324608,887
Events in quadrant C3,607,458583,568
Events in quadrant D6,949,983508,333

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139471
B0204501
C0149741
D0253811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6728250.371581%
B6729911.352355%
C67291382.050825%
D672994013.969386%

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 7088 6729 0 0 0.00% 0.00%
B 7089 6730 4 4 0.06% 0.06%
C 7089 6730 27 27 0.38% 0.40%
D 7089 6730 768 768 10.83% 11.41%

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 8 192 12381 69.22 832 814 167.1
A 13 254 11818 65.85 832 814 167.1
A 3 137 8500 45.99 832 814 167.1
B 6 159 1920239 12185.55 819 799 157.5
B 6 36 43477 270.94 819 799 157.5
B 0 229 37326 231.89 819 799 157.5
C 15 208 303079 1623.0 785 789 186.3
C 14 238 126381 674.3 785 789 186.3
C 3 233 77835 413.66 785 789 186.3
D 8 195 2024037 11494.99 746 729 176.0
D 12 218 1482608 8418.98 746 729 176.0
D 1 52 233768 1323.96 746 729 176.0

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