ASTROSAT CZTI

Data Quality Report

Orbit 06111

Creation date: 2024-06-27T15:02:57.963643
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/AS1A02_104T01_9000000794_06111cztM0_level2.evt modeM0/AS1A02_104T01_9000000794_06111cztM0_level2_quad_clean.evt
Size (bytes)199,857,60037,281,600
Size190.6 MB 35.6 MB
Events in quadrant A1,363,503234,416
Events in quadrant B1,591,134238,669
Events in quadrant C1,342,735235,759
Events in quadrant D1,567,796224,419

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058752
B065671
C058201
D065181

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2723391.432244%
B27231073.929490%
C2723130.477415%
D2723712.607418%

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 3198 2724 0 0 0.00% 0.00%
B 3198 2724 21 21 0.66% 0.77%
C 3198 2724 0 0 0.00% 0.00%
D 3198 2724 51 51 1.59% 1.87%

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 15 27680 365.7 346 337 74.8
A 0 226 3365 40.5 346 337 74.8
A 12 194 3340 40.16 346 337 74.8
B 3 64 167160 2308.54 353 345 72.3
B 15 204 18188 246.93 353 345 72.3
B 0 214 11316 151.83 353 345 72.3
C 1 16 12359 145.55 339 340 82.6
C 8 128 2737 29.03 339 340 82.6
C 13 61 2703 28.62 339 340 82.6
D 5 97 106738 1248.94 331 319 85.2
D 2 206 84508 988.05 331 319 85.2
D 2 14 43018 501.12 331 319 85.2

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