ASTROSAT CZTI

Data Quality Report

Orbit 03432

Creation date: 2024-06-27T14:28:56.159727
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/AS1G05_167T01_9000000456_03432cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03432cztM0_level2_quad_clean.evt
Size (bytes)445,564,80094,227,840
Size424.9 MB 89.9 MB
Events in quadrant A3,135,669607,341
Events in quadrant B3,415,579609,521
Events in quadrant C2,995,563613,435
Events in quadrant D3,507,287571,889

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136454
B0144473
C0133313
D0151293

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6468350.541126%
B6468630.974026%
C6468220.340136%
D64681953.014842%

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 7548 6470 8 8 0.11% 0.12%
B 7548 6470 6 6 0.08% 0.09%
C 7548 6470 0 0 0.00% 0.00%
D 7548 6470 149 149 1.97% 2.30%

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 0 149 72175 449.01 769 753 159.1
A 0 118 48878 302.55 769 753 159.1
A 14 249 22336 135.69 769 753 159.1
B 15 204 246570 1621.84 782 765 151.6
B 2 249 36835 237.99 782 765 151.6
B 4 81 27038 173.35 782 765 151.6
C 6 80 15751 84.04 759 767 178.3
C 13 61 6338 31.25 759 767 178.3
C 12 4 5615 27.19 759 767 178.3
D 13 223 476177 2682.27 737 718 177.3
D 12 246 173381 974.07 737 718 177.3
D 2 37 27284 149.87 737 718 177.3

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