ASTROSAT CZTI

Data Quality Report

Orbit 03689

Creation date: 2024-06-27T14:32:15.823407
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_152T04_9000000480_03689cztM0_level2.evt modeM0/AS1G05_152T04_9000000480_03689cztM0_level2_quad_clean.evt
Size (bytes)512,190,72063,103,680
Size488.5 MB 60.2 MB
Events in quadrant A4,412,058355,170
Events in quadrant B4,190,559374,625
Events in quadrant C3,155,578371,807
Events in quadrant D3,315,213357,991

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173163
B0169952
C0136432
D0142412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64594446.874129%
B64591221.888837%
C6459651.006348%
D64591051.625639%

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 7644 6460 285 285 3.73% 4.41%
B 7644 6460 12 12 0.16% 0.19%
C 7644 6460 5 5 0.07% 0.08%
D 7644 6460 49 49 0.64% 0.76%

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 13 251 1193510 7522.44 784 767 158.6
A 0 118 52458 326.01 784 767 158.6
A 0 50 46002 285.29 784 767 158.6
B 15 204 290560 1864.1 811 793 155.4
B 14 167 276596 1774.27 811 793 155.4
B 3 0 207616 1330.51 811 793 155.4
C 2 53 79936 441.99 771 775 179.1
C 9 144 39095 213.96 771 775 179.1
C 9 247 17590 93.88 771 775 179.1
D 2 37 83151 444.6 772 751 185.3
D 10 172 70700 377.42 772 751 185.3
D 13 239 43806 232.31 772 751 185.3

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
Veto Counter