ASTROSAT CZTI

Data Quality Report

Orbit 22216

Creation date: 2024-06-27T18:38:13.099623
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/AS1A07_054T01_9000003286_22216cztM0_level2.evt modeM0/AS1A07_054T01_9000003286_22216cztM0_level2_quad_clean.evt
Size (bytes)428,512,320134,003,520
Size408.7 MB 127.8 MB
Events in quadrant A3,092,753910,253
Events in quadrant B3,168,643932,847
Events in quadrant C3,135,217891,294
Events in quadrant D3,133,489865,915

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135752
B0137622
C0137212
D0139672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6577110.167250%
B6577270.410522%
C6577450.684203%
D6577110.167250%

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 7781 6577 0 0 0.00% 0.00%
B 7781 6577 0 0 0.00% 0.00%
C 7781 6577 0 0 0.00% 0.00%
D 7781 6577 5 5 0.06% 0.08%

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 2 79 14862 88.54 798 784 159.0
A 13 254 10584 61.64 798 784 159.0
A 0 226 6918 38.58 798 784 159.0
B 12 111 17966 115.52 804 786 148.7
B 11 111 15911 101.7 804 786 148.7
B 14 111 14182 90.08 804 786 148.7
C 14 238 124821 699.57 771 777 177.3
C 13 61 5275 25.37 771 777 177.3
C 0 10 3731 16.66 771 777 177.3
D 1 52 174768 942.65 770 748 184.6
D 13 172 25566 134.44 770 748 184.6
D 2 234 25100 131.91 770 748 184.6

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