ASTROSAT CZTI

Data Quality Report

Orbit 13608

Creation date: 2024-06-27T16:43:28.235912
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/AS1G08_029T01_9000002010_13608cztM0_level2.evt modeM0/AS1G08_029T01_9000002010_13608cztM0_level2_quad_clean.evt
Size (bytes)509,538,24091,595,520
Size485.9 MB 87.4 MB
Events in quadrant A3,399,482586,245
Events in quadrant B4,155,524580,770
Events in quadrant C3,451,379572,695
Events in quadrant D3,957,763554,531

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142843
B0165482
C0143682
D0158402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68801402.034884%
B68802223.226744%
C68801101.598837%
D68811402.034588%

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 7686 6882 0 0 0.00% 0.00%
B 7686 6882 28 28 0.36% 0.41%
C 7686 6882 7 7 0.09% 0.10%
D 7687 6883 23 23 0.30% 0.33%

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 1 162 18822 100.67 872 854 178.5
A 2 250 18207 97.22 872 854 178.5
A 0 226 7945 39.73 872 854 178.5
B 0 219 420686 2543.04 860 837 165.1
B 0 85 113865 684.61 860 837 165.1
B 3 209 46993 279.57 860 837 165.1
C 3 233 152546 780.98 836 841 194.3
C 14 234 20001 98.64 836 841 194.3
C 0 207 19097 93.98 836 841 194.3
D 8 195 363303 1797.54 844 823 201.7
D 13 122 212809 1051.24 844 823 201.7
D 13 249 62665 306.68 844 823 201.7

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