ASTROSAT CZTI

Data Quality Report

Orbit 03433

Creation date: 2024-06-27T14:28:56.940047
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_03433cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03433cztM0_level2_quad_clean.evt
Size (bytes)514,782,72092,868,480
Size490.9 MB 88.6 MB
Events in quadrant A3,403,239584,551
Events in quadrant B3,858,659584,761
Events in quadrant C4,670,029588,313
Events in quadrant D3,180,856565,079

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149383
B0162522
C0188162
D0147152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7033390.554529%
B7033881.251244%
C70336018.545429%
D7033190.270155%

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 7708 7034 14 14 0.18% 0.20%
B 7708 7034 7 7 0.09% 0.10%
C 7708 7034 454 454 5.89% 6.45%
D 7708 7034 11 11 0.14% 0.16%

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 0 118 104530 602.18 829 813 172.2
A 14 249 39833 226.55 829 813 172.2
A 15 31 21501 120.11 829 813 172.2
B 15 204 400305 2420.44 844 824 165.0
B 2 249 60348 360.65 844 824 165.0
B 14 167 40837 242.44 844 824 165.0
C 1 192 1559201 8417.14 788 794 185.1
C 8 208 9710 48.15 788 794 185.1
C 6 80 7671 37.14 788 794 185.1
D 13 223 31068 154.67 804 783 195.8
D 2 206 28001 139.01 804 783 195.8
D 9 85 23330 115.15 804 783 195.8

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