ASTROSAT CZTI

Data Quality Report

Orbit 03367

Creation date: 2024-06-27T14:28:05.564589
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_112T01_9000000452_03367cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03367cztM0_level2_quad_clean.evt
Size (bytes)493,116,48077,783,040
Size470.3 MB 74.2 MB
Events in quadrant A3,511,188467,506
Events in quadrant B3,961,608463,901
Events in quadrant C3,496,158460,172
Events in quadrant D3,455,910442,243

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155373
B0168162
C0155232
D0157182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74861031.375902%
B74861081.442693%
C7486720.961795%
D74861001.335827%

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 9206 7487 9 9 0.10% 0.12%
B 9206 7487 1 1 0.01% 0.01%
C 9206 7487 1 1 0.01% 0.01%
D 9206 7487 21 21 0.23% 0.28%

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 15 174 32333 170.73 889 870 184.3
A 0 50 16517 84.91 889 870 184.3
A 14 249 16112 82.71 889 870 184.3
B 15 204 234650 1337.77 896 873 174.8
B 14 167 192963 1099.22 896 873 174.8
B 0 229 46859 263.15 896 873 174.8
C 9 54 45614 220.25 865 870 203.2
C 15 208 26860 127.93 865 870 203.2
C 1 16 25378 120.64 865 870 203.2
D 13 223 100472 476.04 858 832 209.3
D 13 137 33486 156.01 858 832 209.3
D 13 239 21304 97.81 858 832 209.3

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