ASTROSAT CZTI

Data Quality Report

Orbit 34152

Creation date: 2024-06-27T20:57:10.250828
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/AS1A11_054T07_9000004878_34152cztM0_level2.evt modeM0/AS1A11_054T07_9000004878_34152cztM0_level2_quad_clean.evt
Size (bytes)476,095,68071,300,160
Size454.0 MB 68.0 MB
Events in quadrant A2,681,915444,997
Events in quadrant B4,206,951450,003
Events in quadrant C3,203,504440,783
Events in quadrant D3,930,809415,804

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117073
B0161992
C0128052
D0155422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A582920.034311%
B58294046.930863%
C5829661.132270%
D5829981.681249%

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 7172 5830 0 0 0.00% 0.00%
B 7172 5830 315 315 4.39% 5.40%
C 7172 5830 62 62 0.86% 1.06%
D 7172 5830 83 83 1.16% 1.42%

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 13 6 28177 200.9 681 667 136.9
A 10 83 17411 122.28 681 667 136.9
A 13 254 9983 68.03 681 667 136.9
B 5 31 469037 3651.0 665 647 128.3
B 5 15 400456 3116.43 665 647 128.3
B 5 255 225156 1750.0 665 647 128.3
C 0 10 312992 2025.92 660 665 154.2
C 15 214 249837 1616.27 660 665 154.2
C 6 96 31667 201.1 660 665 154.2
D 8 195 704340 4341.64 659 639 162.1
D 10 118 253658 1561.06 659 639 162.1
D 13 249 117805 722.88 659 639 162.1

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