ASTROSAT CZTI

Data Quality Report

Orbit 47079

Creation date: 2024-06-27T23:31:28.153417
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/AS1C09_003T01_9000006298_47079cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47079cztM0_level2_quad_clean.evt
Size (bytes)585,904,320104,552,640
Size558.8 MB 99.7 MB
Events in quadrant A6,577,861725,880
Events in quadrant B5,178,512711,904
Events in quadrant C2,991,814709,006
Events in quadrant D6,410,521542,140

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240471
B0201431
C0141621
D0239271

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68341652.414399%
B68344526.613989%
C6835290.424287%
D6834112716.491074%

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 7819 6835 44 44 0.56% 0.64%
B 7819 6835 231 231 2.95% 3.38%
C 7820 6836 13 13 0.17% 0.19%
D 7819 6835 1059 1059 13.54% 15.49%

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 3698968 24424.27 729 713 151.4
A 9 191 35865 232.15 729 713 151.4
A 13 254 12615 78.6 729 713 151.4
B 3 112 1936988 13949.46 717 695 138.8
B 5 173 257172 1847.71 717 695 138.8
B 5 172 46976 333.42 717 695 138.8
C 14 254 134350 786.87 720 723 169.8
C 3 233 39376 227.61 720 723 169.8
C 1 3 6170 32.08 720 723 169.8
D 1 52 3365363 20375.02 655 634 165.1
D 1 47 328734 1986.8 655 634 165.1
D 13 249 109512 659.31 655 634 165.1

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