5. Tclean/MakeImages
Make target per-spw continuum images

Image Details

Field Spw Pol Image details Image result
22192 (TARGET) 10,11,12,13,14,15,16,17,2,3,4,5,6,7,8,9 I centre frequency of image 3.0000GHz (LSRK) Iteration 1: image

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beam 3.12 x 1.95 arcsec
beam p.a. -13.1deg
cleaning threshold -
n-sigma * initial scaled MAD of residual 0.000723 Jy/beam
n-sigma * final scaled MAD of residual 0.000630 Jy/beam
clean residual peak / scaled MAD 4.53
non-pbcor image RMS 0.15 mJy/beam
flatnoise image max / min 54.7 / -1.37 mJy/beam
fractional bandwidth / nterms 69% / 2
aggregate bandwidth 2.05 GHz (LSRK)
clean iterations 7803
stop reason [8] any combination of n-sigma and other valid exit criterion
score 1.00
image file VLASS4.1.ql.T02t39.J192142-343000.10.2048.v1.I.iter1.image.tt0
data type
hm_lownoisethreshold
-999.0
hm_maxpsffraction
-999.0
hm_npixels
0
overwrite_on_export
True
hm_minbeamfrac
-999.0
output_dir
 
hm_minpsffraction
-999.0
calcsb
False
vis
['VLASS4.1.sb49730023.eb49999744.61064.45252954861_split_split.ms']
drcorrect
-999.0
hm_masking
none
hm_minpercentchange
-999.0
hm_cyclefactor
-999.0
cleancontranges
False
target_list
[{'antenna': None, 'field': '22192,22193,22194,22195,22196,22197,22198,22199,22200,22201,22202,22203,22204,22205,22206,22207,22208,22209,22210,22211,22212,22213,22214,22215,22216,22217,22218,22219,22220,22221,22222,22223,22224,22293,22294,22295,22296,22297,22298,22299,22300,22301,22302,22303,22304,22305,22306,22307,22308,22309,22310,22311,22312,22313,22314,22315,22316,22317,22318,22319,22320,22321,22322,22323,22324,22553,22554,22555,22556,22557,22558,22559,22560,22561,22562,22563,22564,22565,22566,22567,22568,22569,22570,22571,22572,22573,22574,22575,22576,22577,22578,22579,22580,22581,22582,22583,22584,22653,22654,22655,22656,22657,22658,22659,22660,22661,22662,22663,22664,22665,22666,22667,22668,22669,22670,22671,22672,22673,22674,22675,22676,22677,22678,22679,22680,22681,22682,22683,22684,22833,22834,22835,22836,22837,22838,22839,22840,22841,22842,22843,22844,22845,22846,22847,22848,22849,22850,22851,22852,22853,22854,22855,22856,22857,22858,22859,22860,22861,22862,22863,22864,23092,23093,23094,23095,23096,23097,23098,23099,23100,23101,23102,23103,23104,23105,23106,23107,23108,23109,23110,23111,23112,23113,23114,23115,23116,23117,23118,23119,23120,23121,23122,23123,23192,23193,23194,23195,23196,23197,23198,23199,23200,23201,23202,23203,23204,23205,23206,23207,23208,23209,23210,23211,23212,23213,23214,23215,23216,23217,23218,23219,23220,23221,23222,23223,23450,23451,23452,23453,23454,23455,23456,23457,23458,23459,23460,23461,23462,23463,23464,23465,23466,23467,23468,23469,23470,23471,23472,23473,23474,23475,23476,23477,23478,23479,23480,23481,23550,23551,23552,23553,23554,23555,23556,23557,23558,23559,23560,23561,23562,23563,23564,23565,23566,23567,23568,23569,23570,23571,23572,23573,23574,23575,23576,23577,23578,23579,23580,23581,23807,23808,23809,23810,23811,23812,23813,23814,23815,23816,23817,23818,23819,23820,23821,23822,23823,23824,23825,23826,23827,23828,23829,23830,23831,23832,23833,23834,23835,23836,23837,23838,23839', 'intent': 'TARGET', 'spw': '2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17', 'spwsel_lsrk': None, 'spwsel_topo': None, 'spwsel_all_cont': None, 'num_all_spws': None, 'num_good_spws': None, 'cell': '1.0arcsec', 'cfcache': '', 'imsize': [5760, 5760], 'pblimit': None, 'phasecenter': 'J2000 19:21:42.715 -34.30.0.0000', 'specmode': 'mfs', 'gridder': 'mosaic', 'datacolumn': 'data', 'datatype': None, 'datatype_info': None, 'deconvolver': 'mtmfs', 'imagename': 'VLASS4.1.ql.T02t39.J192142-343000.10.2048.v1', 'start': '', 'width': '', 'nbin': -1, 'nchan': -1, 'stokes': 'I', 'nterms': 2, 'robust': 1.0, 'uvrange': None, 'bl_ratio': None, 'uvtaper': [], 'scales': [0], 'niter': 20000, 'cycleniter': -999, 'cyclefactor': -999.0, 'nmajor': 220, 'sensitivity': 0.0, 'threshold': '', 'reffreq': '3.0GHz', 'restfreq': None, 'vis': None, 'is_per_eb': None, 'usepointing': None, 'mosweight': None, 'drcorrect': None, 'flagpct': None, 'hm_nsigma': None, 'conjbeams': False, 'cfcache_nowb': None, 'mask': '', 'pbmask': None}]
hm_fastnoise
None
parallel
automatic
hm_growiterations
-999
tlimit
2.0
vlass_plane_reject_im
{'apply': True, 'exclude_spw': '', 'flagpct_thresh': 0.8, 'beamdev_thresh': 0.2}
hm_noisethreshold
-999.0
hm_cleaning
manual
hm_negativethreshold
-999.0
hm_weighting
None
hm_dogrowprune
None
hm_nsigma
0.0
masklimit
2.0
hm_sidelobethreshold
-999.0
hm_perchanweightdensity
None
Start time
2026-02-03 15:22:23.152
End
2026-02-04 07:08:08.724
Duration
15:45:45.572
Note, WebLog generation is not included in the time.

CASA logs for stage 5