ASTROSAT CZTI

Data Quality Report

Orbit 32390

Creation date: 2024-06-27T20:39:39.512369
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/AS1T04_059T01_9000004704_32390cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32390cztM0_level2_quad_clean.evt
Size (bytes)739,872,00084,326,400
Size705.6 MB 80.4 MB
Events in quadrant A2,899,220584,451
Events in quadrant B11,124,889437,272
Events in quadrant C4,205,788553,891
Events in quadrant D3,771,390557,453

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125492
B0371851
C0164241
D0153091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6000510.850000%
B6000334055.666667%
C60004978.283333%
D60001512.516667%

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 6925 6001 0 0 0.00% 0.00%
B 6925 6001 2308 2308 33.33% 38.46%
C 6925 6001 257 257 3.71% 4.28%
D 6925 6001 86 86 1.24% 1.43%

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 43368 286.09 737 722 149.1
A 13 6 12170 76.8 737 722 149.1
A 13 254 11023 69.1 737 722 149.1
B 4 80 6749061 57448.88 614 598 117.5
B 6 159 1357282 11549.29 614 598 117.5
B 5 172 471917 4012.28 614 598 117.5
C 3 233 1331638 8435.39 676 679 157.8
C 14 238 111933 705.11 676 679 157.8
C 0 10 57885 362.56 676 679 157.8
D 8 195 523904 3067.85 710 693 170.5
D 13 249 239129 1398.07 710 693 170.5
D 1 47 151016 881.42 710 693 170.5

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