ASTROSAT CZTI

Data Quality Report

Orbit 45754

Creation date: 2024-06-27T23:15:48.261372
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/AS1T05_183T01_9000006124_45754cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45754cztM0_level2_quad_clean.evt
Size (bytes)722,119,680114,402,240
Size688.7 MB 109.1 MB
Events in quadrant A6,722,138791,949
Events in quadrant B8,383,810747,573
Events in quadrant C4,092,555774,429
Events in quadrant D6,964,344637,807

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251070
B0301110
C0174171
D0257790

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73461141.551865%
B734695312.973047%
C73462202.994827%
D7346104114.170977%

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 7346 7346 21 21 0.29% 0.29%
B 7346 7346 641 641 8.73% 8.73%
C 7346 7346 188 188 2.56% 2.56%
D 7346 7346 825 825 11.23% 11.23%

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 3359653 18983.89 834 815 176.9
A 4 0 62007 345.85 834 815 176.9
A 13 248 21959 119.5 834 815 176.9
B 3 112 4303548 27252.75 803 779 157.9
B 5 172 353803 2235.97 803 779 157.9
B 0 190 141603 891.95 803 779 157.9
C 14 254 861646 4499.38 810 816 191.3
C 12 2 26424 133.85 810 816 191.3
C 3 233 15995 79.34 810 816 191.3
D 1 47 1877623 9388.04 778 753 199.9
D 1 52 945764 4726.92 778 753 199.9
D 13 249 492390 2459.15 778 753 199.9

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