ASTROSAT CZTI

Data Quality Report

Orbit 10307

Creation date: 2024-06-27T15:57:42.388333
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/AS1A03_124T01_9000001486_10307cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10307cztM0_level2_quad_clean.evt
Size (bytes)419,878,08089,323,200
Size400.4 MB 85.2 MB
Events in quadrant A2,950,642593,680
Events in quadrant B3,288,943591,871
Events in quadrant C2,607,440578,047
Events in quadrant D3,491,468552,821

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012227219
B013472221
C011644230
D014335247

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01142
B01142
C01142
D01142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5561801.438590%
B55632163.882797%
C5557440.791794%
D5556921.655868%

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 6739 5577 2 2 0.03% 0.04%
B 6729 5571 112 112 1.66% 2.01%
C 6748 5568 0 0 0.00% 0.00%
D 6736 5573 33 33 0.49% 0.59%

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 15 196631 1402.85 691 677 139.7
A 8 5 81264 576.93 691 677 139.7
A 0 226 6422 41.13 691 677 139.7
B 4 239 547002 4202.53 679 661 130.0
B 0 214 39085 295.56 679 661 130.0
B 11 51 18460 136.91 679 661 130.0
C 14 238 6042 34.87 664 667 154.1
C 14 234 5497 31.34 664 667 154.1
C 13 61 4871 27.28 664 667 154.1
D 8 195 556689 3537.92 663 647 157.2
D 1 20 126862 803.07 663 647 157.2
D 10 199 94124 594.77 663 647 157.2

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