ASTROSAT CZTI

Data Quality Report

Orbit 09394

Creation date: 2024-06-27T15:45:28.820955
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/AS1G07_069T01_9000001332_09394cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09394cztM0_level2_quad_clean.evt
Size (bytes)469,612,80098,568,000
Size447.9 MB 94.0 MB
Events in quadrant A4,066,927629,577
Events in quadrant B3,110,801645,537
Events in quadrant C3,223,116653,961
Events in quadrant D3,396,647619,633

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163748
B0133834
C0137302
D0143922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62491181.888302%
B6250490.784000%
C6251921.471765%
D62511492.383619%

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 7566 6251 59 59 0.78% 0.94%
B 7566 6252 1 1 0.01% 0.02%
C 7566 6252 32 32 0.42% 0.51%
D 7566 6252 70 70 0.93% 1.12%

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 8 5 967341 6336.96 758 743 152.5
A 5 16 160111 1044.81 758 743 152.5
A 1 162 9536 57.65 758 743 152.5
B 5 174 59509 412.55 768 751 142.4
B 0 214 30584 209.46 768 751 142.4
B 12 111 15101 100.75 768 751 142.4
C 4 254 251929 1449.85 759 764 173.2
C 13 61 5736 28.7 759 764 173.2
C 14 234 5392 26.72 759 764 173.2
D 1 52 309407 1623.98 745 727 190.1
D 12 233 127938 669.26 745 727 190.1
D 7 71 63910 332.41 745 727 190.1

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