ASTROSAT CZTI

Data Quality Report

Orbit 08578

Creation date: 2024-06-27T15:34:32.192967
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_102T01_9000001202_08578cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08578cztM0_level2_quad_clean.evt
Size (bytes)412,695,360103,651,200
Size393.6 MB 98.8 MB
Events in quadrant A2,992,850675,084
Events in quadrant B3,329,646689,540
Events in quadrant C2,728,632680,617
Events in quadrant D3,021,198656,809

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130812
B0142001
C0126701
D0134781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6261250.399297%
B6261620.990257%
C6261280.447213%
D6261480.766651%

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 7261 6262 2 2 0.03% 0.03%
B 7261 6262 9 9 0.12% 0.14%
C 7261 6262 0 0 0.00% 0.00%
D 7261 6261 9 9 0.12% 0.14%

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 15 236 225828 1558.8 705 689 144.4
A 5 16 20901 139.94 705 689 144.4
A 13 14 9753 62.76 705 689 144.4
B 0 219 249566 1837.22 714 697 135.5
B 11 51 138686 1018.67 714 697 135.5
B 5 255 50760 369.58 714 697 135.5
C 8 222 5398 29.08 697 698 161.6
C 13 61 5317 28.58 697 698 161.6
C 9 68 3100 14.86 697 698 161.6
D 12 233 135074 731.14 688 671 183.8
D 1 52 123386 667.56 688 671 183.8
D 13 137 46737 250.6 688 671 183.8

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