ASTROSAT CZTI

Data Quality Report

Orbit 12317

Creation date: 2024-06-27T16:25:22.451641
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/AS1A04_183T02_9000001816_12317cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12317cztM0_level2_quad_clean.evt
Size (bytes)505,995,84063,167,040
Size482.6 MB 60.2 MB
Events in quadrant A3,754,795365,960
Events in quadrant B4,468,372374,352
Events in quadrant C3,248,090372,871
Events in quadrant D3,421,371355,387

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152313
B0172772
C0135152
D0141742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63641492.341295%
B63643946.191075%
C6364831.304211%
D6364901.414205%

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 7640 6366 4 4 0.05% 0.06%
B 7640 6366 173 173 2.26% 2.72%
C 7640 6366 3 3 0.04% 0.05%
D 7640 6366 14 14 0.18% 0.22%

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 167852 976.03 846 829 171.1
A 1 178 93920 544.0 846 829 171.1
A 1 161 82246 475.78 846 829 171.1
B 4 239 654899 4155.88 843 825 157.4
B 3 64 420200 2664.64 843 825 157.4
B 10 244 24160 148.27 843 825 157.4
C 4 254 18248 91.35 825 832 190.6
C 14 234 9887 47.5 825 832 190.6
C 13 61 6173 28.02 825 832 190.6
D 1 52 155695 798.07 813 793 194.1
D 13 104 55431 281.5 813 793 194.1
D 8 195 30707 154.12 813 793 194.1

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