ASTROSAT CZTI

Data Quality Report

Orbit 23053

Creation date: 2024-06-27T18:49:52.169045
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/AS1A07_054T01_9000003406_23053cztM0_level2.evt modeM0/AS1A07_054T01_9000003406_23053cztM0_level2_quad_clean.evt
Size (bytes)517,199,040108,437,760
Size493.2 MB 103.4 MB
Events in quadrant A2,856,500758,165
Events in quadrant B3,053,136762,986
Events in quadrant C2,965,514727,768
Events in quadrant D6,370,567605,401

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126941
B0131841
C0129141
D0232972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6137590.961382%
B6137861.401336%
C61371191.939058%
D6136143923.451760%

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 7127 6137 0 0 0.00% 0.00%
B 7127 6137 16 16 0.22% 0.26%
C 7127 6137 2 2 0.03% 0.03%
D 7126 6136 1280 1280 17.96% 20.86%

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 13 254 9800 60.94 740 724 148.9
A 3 137 6454 38.47 740 724 148.9
A 0 226 6265 37.2 740 724 148.9
B 4 216 53777 377.8 737 717 140.4
B 3 64 50552 354.84 737 717 140.4
B 0 189 29086 202.0 737 717 140.4
C 14 238 112847 680.88 712 716 164.7
C 0 10 55588 333.19 712 716 164.7
C 0 207 15934 92.41 712 716 164.7
D 1 52 3589013 23344.58 629 610 153.7
D 13 153 163766 1061.42 629 610 153.7
D 12 227 151604 982.3 629 610 153.7

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