ASTROSAT CZTI

Data Quality Report

Orbit 06561

Creation date: 2024-06-27T15:08:50.865205
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_246T04_9000000882_06561cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06561cztM0_level2_quad_clean.evt
Size (bytes)497,350,080101,275,200
Size474.3 MB 96.6 MB
Events in quadrant A3,509,568637,546
Events in quadrant B3,839,120646,676
Events in quadrant C3,453,863640,717
Events in quadrant D3,739,892609,872

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157541
B0166270
C0159390
D0167580

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76451722.249836%
B76452172.838457%
C7645991.294964%
D76451632.132112%

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 7645 7645 0 0 0.00% 0.00%
B 7645 7645 51 51 0.67% 0.67%
C 7645 7645 15 15 0.20% 0.20%
D 7645 7645 42 42 0.55% 0.55%

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 80285 437.48 883 862 181.5
A 13 251 24949 132.68 883 862 181.5
A 0 226 8493 42.03 883 862 181.5
B 4 48 183829 1075.93 883 861 170.1
B 4 172 71868 417.55 883 861 170.1
B 15 204 64850 376.28 883 861 170.1
C 9 237 103359 512.92 855 853 199.8
C 13 61 6735 29.43 855 853 199.8
C 8 128 6032 25.91 855 853 199.8
D 2 33 231875 1094.96 854 826 211.0
D 14 34 130922 616.54 854 826 211.0
D 2 14 48740 227.07 854 826 211.0

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