In this stage, images with significant emission are cleaned to a threshold of 4 x (the RMS noise measured by tclean) using automasking. If a clean mask is not found automatically, then no further cleaning is performed.

Image Details

Field Spw
3C75 (TARGET)
2, 3, 4, 5, 6, 7, 8, 9 / EVLA_S#A0C0#2, EVLA_S#A0C0#3, EVLA_S#A0C0#4, EVLA_S#A0C0#5, EVLA_S#A0C0#6, EVLA_S#A0C0#7, EVLA_S#A0C0#8, EVLA_S#A0C0#9
Iteration 2: image
stokes I
centre frequency of image 2.9990GHz (LSRK)
beam 24.1 x 18.9 arcsec
beam p.a. -36.7deg
final theoretical sensitivity -
clean residual peak / scaled MAD -14.56
non-pbcor image RMS 68 uJy/beam
pbcor image max / min 146 / -1.44 mJy/beam
fractional bandwidth / nterms 34% / 2
aggregate bandwidth 1.02 GHz (LSRK)
nsigma 4.0
n-sigma * initial scaled MAD of residual 0.00401 Jy/beam
n-sigma * final scaled MAD of residual 0.000170 Jy/beam
vis. amp. ratio 10.54
score 1.00
image file
oussid.s24_0.3C75_sci.S_band.cont.regcal.I.iter2.image.tt0
data type
REGCAL_CONTLINE_SCIENCE
hm_maxpsffraction
-999.0
hm_growiterations
-999
target_list
[{'antenna': ['0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26&'], 'field': '3C75', 'intent': 'TARGET', 'spw': '2,3,4,5,6,7,8,9', 'spwsel_lsrk': {'spw2': '', 'spw3': '', 'spw4': '', 'spw5': '', 'spw6': '', 'spw7': '', 'spw8': '', 'spw9': ''}, 'spwsel_topo': None, 'spwsel_all_cont': False, 'num_all_spws': 8, 'num_good_spws': 8, 'cell': ['3.5arcsec'], 'cfcache': None, 'imsize': [864, 864], 'pblimit': None, 'phasecenter': 'ICRS 02:57:42.6291 +006.01.04.817', 'specmode': 'cont', 'gridder': 'wproject', 'datacolumn': 'data', 'datatype': 'REGCAL_CONTLINE_SCIENCE', 'datatype_info': 'REGCAL_CONTLINE_SCIENCE', 'deconvolver': None, 'imagename': 'oussid.sSTAGENUMBER.3C75_sci.S_band.cont.regcal', 'start': '', 'width': '', 'nbin': -1, 'nchan': -1, 'stokes': 'I', 'nterms': None, 'robust': 0.5, 'uvrange': '>0.6klambda', 'bl_ratio': 10.539887079959579, 'uvtaper': [], 'scales': None, 'niter': None, 'cycleniter': None, 'cyclefactor': None, 'sensitivity': None, 'threshold': None, 'reffreq': None, 'restfreq': None, 'vis': ['TDRW0001.sb35624494.eb35628826.58395.23719237269_targets.ms'], 'is_per_eb': None, 'usepointing': False, 'mosweight': False, 'drcorrect': None}]
hm_cyclefactor
3.0
hm_lownoisethreshold
-999.0
output_dir
 
hm_fastnoise
None
parallel
automatic
calcsb
False
hm_nsigma
0.0
vis
['TDRW0001.sb35624494.eb35628826.58395.23719237269_targets.ms']
hm_masking
None
masklimit
2.0
hm_npixels
0
hm_minbeamfrac
-999.0
hm_dogrowprune
None
tlimit
2.0
hm_noisethreshold
-999.0
hm_sidelobethreshold
-999.0
hm_perchanweightdensity
None
hm_weighting
None
overwrite_on_export
True
hm_minpsffraction
-999.0
hm_minpercentchange
-999.0
drcorrect
-999.0
hm_negativethreshold
-999.0
cleancontranges
False
hm_cleaning
rms
Start time
2023-09-14 17:12:25.536
End
2023-09-14 19:44:32.083
Duration
2:32:06.546
Context size
206.1 MiB
Note, WebLog generation is not included in the time.

CASA logs for stage 24