ASTROSAT CZTI

Data Quality Report

Orbit 44884

Creation date: 2024-06-27T23:07:38.404534
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/AS1A13_017T02_9000006032_44884cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44884cztM0_level2_quad_clean.evt
Size (bytes)567,616,320128,275,200
Size541.3 MB 122.3 MB
Events in quadrant A6,227,314858,230
Events in quadrant B4,464,204874,410
Events in quadrant C3,599,096858,761
Events in quadrant D6,111,100745,670

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246500
B0186460
C0163801
D0235565

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78631451.844080%
B78631922.441816%
C7862210.267108%
D78615076.449561%

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 7863 7863 26 26 0.33% 0.33%
B 7863 7863 95 95 1.21% 1.21%
C 7863 7863 3 3 0.04% 0.04%
D 7863 7862 339 339 4.31% 4.31%

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 10 83 2507677 13185.32 907 890 190.1
A 13 248 106370 554.81 907 890 190.1
A 10 248 70554 366.42 907 890 190.1
B 0 219 413988 2297.45 903 875 179.8
B 5 255 148486 820.91 903 875 179.8
B 0 155 94814 522.42 903 875 179.8
C 14 254 58370 271.05 896 901 212.0
C 3 233 13328 58.61 896 901 212.0
C 15 208 11873 51.75 896 901 212.0
D 1 52 1125304 5148.05 873 848 218.4
D 2 249 349917 1598.13 873 848 218.4
D 13 249 297836 1359.69 873 848 218.4

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