ASTROSAT CZTI

Data Quality Report

Orbit 03355

Creation date: 2024-06-27T14:27:56.898081
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_112T01_9000000452_03355cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03355cztM0_level2_quad_clean.evt
Size (bytes)433,483,20076,118,400
Size413.4 MB 72.6 MB
Events in quadrant A2,993,902469,631
Events in quadrant B3,562,877469,458
Events in quadrant C3,060,329464,521
Events in quadrant D3,069,325448,339

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133213
B0150022
C0135542
D0138012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6492440.677757%
B64921211.863832%
C6492400.616143%
D6492590.908811%

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 7607 6493 0 0 0.00% 0.00%
B 7607 6493 27 27 0.35% 0.42%
C 7607 6493 4 4 0.05% 0.06%
D 7607 6493 24 24 0.32% 0.37%

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 14 249 14708 88.54 770 753 157.6
A 0 226 8469 48.96 770 753 157.6
A 12 194 8128 46.79 770 753 157.6
B 15 204 390246 2571.78 782 764 151.4
B 4 81 41303 267.68 782 764 151.4
B 15 85 41221 267.14 782 764 151.4
C 1 16 49170 273.27 756 761 177.1
C 14 223 24059 131.52 756 761 177.1
C 15 208 12585 66.75 756 761 177.1
D 13 223 163609 894.06 747 725 182.2
D 13 239 20607 109.13 747 725 182.2
D 5 233 16315 85.57 747 725 182.2

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