ASTROSAT CZTI

Data Quality Report

Orbit 12095

Creation date: 2024-06-27T16:22:20.298630
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/AS1G08_065T01_9000001796_12095cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12095cztM0_level2_quad_clean.evt
Size (bytes)685,077,12098,611,200
Size653.3 MB 94.0 MB
Events in quadrant A4,565,073597,783
Events in quadrant B5,846,708592,917
Events in quadrant C4,019,676597,365
Events in quadrant D5,700,314567,243

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193573
B0231211
C0184621
D0228331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01820
B01820
C01820
D01820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A90971241.363087%
B90974154.561943%
C9097700.769484%
D90972472.715181%

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 25166 9098 23 23 0.09% 0.25%
B 25167 9099 207 207 0.82% 2.27%
C 25167 9099 9 9 0.04% 0.10%
D 25167 9099 158 158 0.63% 1.74%

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 1 162 127899 587.67 1063 1042 215.9
A 13 251 90939 416.45 1063 1042 215.9
A 1 178 51652 234.45 1063 1042 215.9
B 4 239 1315138 6633.21 1041 1017 198.1
B 15 204 148826 746.08 1041 1017 198.1
B 11 51 113542 567.98 1041 1017 198.1
C 14 234 33945 140.23 1017 1020 234.8
C 15 208 15581 62.02 1017 1020 234.8
C 13 61 7645 28.22 1017 1020 234.8
D 8 195 574040 2353.85 1014 985 243.5
D 1 52 540260 2215.1 1014 985 243.5
D 10 50 217401 888.94 1014 985 243.5

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