ASTROSAT CZTI

Data Quality Report

Orbit 32184

Creation date: 2024-06-27T20:37:20.620588
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/AS1A09_131T01_9000004690_32184cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32184cztM0_level2_quad_clean.evt
Size (bytes)611,144,640111,934,080
Size582.8 MB 106.7 MB
Events in quadrant A3,248,016746,768
Events in quadrant B5,549,689737,983
Events in quadrant C4,045,540708,044
Events in quadrant D5,188,860706,836

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142752
B0220981
C0165241
D0202108

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7040620.880682%
B70402683.806818%
C70404706.676136%
D70392613.707913%

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 7335 7041 0 0 0.00% 0.00%
B 7335 7041 97 97 1.32% 1.38%
C 7335 7041 5 5 0.07% 0.07%
D 7335 7041 168 168 2.29% 2.39%

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 13 6 18711 106.28 836 819 168.3
A 13 254 14272 79.91 836 819 168.3
A 3 137 8504 45.65 836 819 168.3
B 6 159 1850653 11803.27 818 796 156.7
B 5 172 359967 2291.74 818 796 156.7
B 0 190 68659 433.01 818 796 156.7
C 3 233 405997 2204.6 782 784 183.8
C 14 238 245036 1328.88 782 784 183.8
C 14 254 159323 862.55 782 784 183.8
D 8 195 1216248 6379.22 799 776 190.5
D 12 218 390526 2045.54 799 776 190.5
D 7 38 182360 953.01 799 776 190.5

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