ASTROSAT CZTI

Data Quality Report

Orbit 20360

Creation date: 2024-06-27T18:14:23.590630
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/AS1A05_163T01_9000003010_20360cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20360cztM0_level2_quad_clean.evt
Size (bytes)466,318,08097,231,680
Size444.7 MB 92.7 MB
Events in quadrant A3,034,519631,781
Events in quadrant B3,092,895639,173
Events in quadrant C3,092,625619,053
Events in quadrant D4,465,682605,946

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132271
B0133111
C0133131
D0178361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6424380.591532%
B6425490.762646%
C6425751.167315%
D64251872.910506%

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 7355 6425 0 0 0.00% 0.00%
B 7356 6427 0 0 0.00% 0.00%
C 7356 6426 0 0 0.00% 0.00%
D 7356 6426 117 117 1.59% 1.82%

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 7963 45.41 784 768 158.5
A 6 16 7779 44.24 784 768 158.5
A 0 226 6759 37.81 784 768 158.5
B 0 230 20970 133.76 780 759 151.1
B 0 198 18966 120.5 780 759 151.1
B 12 111 18801 119.41 780 759 151.1
C 14 238 117011 649.69 762 768 178.9
C 13 61 5156 24.52 762 768 178.9
C 3 233 2667 10.61 762 768 178.9
D 1 52 1274959 6304.86 762 749 202.1
D 7 238 255855 1262.28 762 749 202.1
D 2 234 27903 134.36 762 749 202.1

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