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

Image Details

Field Spw Pol Image details Image result
3359 (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 2.35 x 1.84 arcsec
beam p.a. 13.8deg
cleaning threshold -
n-sigma * initial scaled MAD of residual 0.000750 Jy/beam
n-sigma * final scaled MAD of residual 0.000647 Jy/beam
clean residual peak / scaled MAD -7.70
non-pbcor image RMS 0.14 mJy/beam
flatnoise image max / min 282 / -7.18 mJy/beam
fractional bandwidth / nterms 69% / 2
aggregate bandwidth 2.05 GHz (LSRK)
clean iterations 20000
stop reason [1] iteration limit
score 1.00
image file VLASS4.1.ql.T04t19.J122428-263000.10.2048.v1.I.iter1.image.tt0
data type
hm_fastnoise
None
hm_npixels
0
hm_dogrowprune
None
hm_negativethreshold
-999.0
hm_nsigma
0.0
hm_cleaning
manual
hm_minpercentchange
-999.0
calcsb
False
target_list
[{'antenna': None, 'field': '3359,3360,3361,3362,3363,3364,3365,3366,3367,3368,3369,3370,3371,3372,3373,3374,3375,3376,3377,3378,3379,3380,3381,3382,3383,3608,3609,3610,3611,3612,3613,3614,3615,3616,3617,3618,3619,3620,3621,3622,3623,3624,3625,3626,3627,3628,3629,3630,3631,3632,3766,3767,3768,3769,3770,3771,3772,3773,3774,3775,3776,3777,3778,3779,3780,3781,3782,3783,3784,3785,3786,3787,3788,3789,3790,3791,4014,4015,4016,4017,4018,4019,4020,4021,4022,4023,4024,4025,4026,4027,4028,4029,4030,4031,4032,4033,4034,4035,4036,4037,4038,4039,4172,4173,4174,4175,4176,4177,4178,4179,4180,4181,4182,4183,4184,4185,4186,4187,4188,4189,4190,4191,4192,4193,4194,4195,4196,4197,4420,4421,4422,4423,4424,4425,4426,4427,4428,4429,4430,4431,4432,4433,4434,4435,4436,4437,4438,4439,4440,4441,4442,4443,4444,4445,4578,4579,4580,4581,4582,4583,4584,4585,4586,4587,4588,4589,4590,4591,4592,4593,4594,4595,4596,4597,4598,4599,4600,4601,4602,4603,4826,4827,4828,4829,4830,4831,4832,4833,4834,4835,4836,4837,4838,4839,4840,4841,4842,4843,4844,4845,4846,4847,4848,4849,4850,4983,4984,4985,4986,4987,4988,4989,4990,4991,4992,4993,4994,4995,4996,4997,4998,4999,5000,5001,5002,5003,5004,5005,5006,5007', '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 12:24:28.635 -26.30.0.0000', 'specmode': 'mfs', 'gridder': 'mosaic', 'datacolumn': 'data', 'datatype': None, 'datatype_info': None, 'deconvolver': 'mtmfs', 'imagename': 'VLASS4.1.ql.T04t19.J122428-263000.10.2048.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}]
vlass_plane_reject_im
{'apply': True, 'exclude_spw': '', 'flagpct_thresh': 0.8, 'beamdev_thresh': 0.2}
hm_minbeamfrac
-999.0
hm_maxpsffraction
-999.0
hm_weighting
None
vis
['VLASS4.1.sb49727077.eb49991266.61063.41122248843_split_split.ms']
cleancontranges
False
hm_perchanweightdensity
None
masklimit
2.0
hm_lownoisethreshold
-999.0
hm_growiterations
-999
hm_cyclefactor
-999.0
tlimit
2.0
parallel
automatic
hm_minpsffraction
-999.0
hm_noisethreshold
-999.0
hm_sidelobethreshold
-999.0
hm_masking
none
output_dir
 
overwrite_on_export
True
drcorrect
-999.0
Start time
2026-02-01 04:59:33.571
End
2026-02-02 06:02:18.215
Duration
1 day, 1:02:44.644
Note, WebLog generation is not included in the time.

CASA logs for stage 5