The LOFAR Two-metre Sky Survey (LoTSS) VII. Third data release (P313+10)

Shimwell, T.  W.; Hardcastle, M.  J.; Tasse, C.; Drabent, A.; Botteon, A.; Williams, W. L.; Best, P. N.; Röttgering, H. J. A.; Brüggen, M.; Brunetti, G.; Callingham, J. R.; Chyży, K.  T.; Conway, J. E.; De Gasperin, F.; Haverkorn, M.; Horellou, C.; Jackson, N.; Miley, G. K.; Morabito, L. K.; Morganti, R.; O'Sullivan, S. P.; Schwarz, D. J.; Smith, D. J. B.; van Weeren, R. J.; Vedantham, H. K.; White, G. J.; Ahmadi, A.; Alegre, L.; Arias, M.; Asabere, B.; Bahr-Kalus, B.; Barkus, B.; Bilicki, M.; Böhme, L.; Brentjens, M.; Brienza, M.; Bomans, D. J.; Bonafede, A.; Bonato, M.; Bonnassieux, E.; Boxelaar, J. M.; Camera, S.; Cassano, R.; Chilufya, J.; Cianfaglione, M.; Croston, J. H.; Cuciti, V.; Dabhade, P.; De Rubeis, E.; de Jong, J. M. G. H. J.; Dallacasa, D.; Dettmar, R. J.; Duncan, K. J.; Di Gennaro, G.; Edler, H. W.; Groeneveld, C.; Gürkan, G.; Hajduk, M.; Hale, C. L.; Heesen, V.; Hoang, D. N.; Hoeft, M.; Holties, H.; Horton, M. A.; Iacobelli, M.; Jamrozy, M.; Jarvis, M. J.; Jelic, V.; Kadler, M.; Kondapally, R.; Kunert-Bajraszewska, M.; Loose, M.; Magliocchetti, M.; Małek, K.; Manzano, C.; McKean, J. P.; Mevius, M.; Mingo, B.; Miskolczi, A.; Misra, A.; Moldón, J.; Nair, D. G.; Nakoneczny, S. J.; Orru, E.; Pashapour-Ahmadabadi, M.; Pasini, T.; Petley, J.; Pierce, J. C. S.; Prandoni, I.; Rafferty, D.; Rajpurohit, K.; Riseley, C. J.; Roberts, I. D.; Sethi, S.; Shulevski, A.; Stein, M.; Stuardi, C.; Sweijen, F.; ter Veen, S.; Timmerman, R.; Vaccari, M.; Wijnholds, S.

Published February 16, 2026 | Version v1

Dataset Open

The LOFAR Two-metre Sky Survey (LoTSS) VII. Third data release (P313+10)

In this data release from the LOw-Frequency ARray (LOFAR) Two-metre Sky Survey (LoTSS) we present 120-168 MHz images covering 88% of the northern sky. The individual pointing images (at 6′′ and 20′′ resolution) were derived from 12,950 hrs (18.6 PB) of LOFAR High Band Antenna data which were processed through fully automated direction-independent and direction-dependent calibration pipelines that correct for instrumental effects as well as spatially and temporally varying ionospheric distortions. The Stokes I images were then combined, accounting for the rms noise level and telescope beam, to form the final Stokes I mosaic images at 6′′ and 20′′ resolution, with a central frequency of 144MHz. From the 6′′ resolution Stokes mosaics we derived a catalogue of 13,664,379 radio sources (consisting of 16,943,656 Gaussian components), the majority of which have never been detected at radio wavelengths before. These mosaics have a median rms sensitivity of 92 μ Jy/beam; a random and systematic flux density scale accuracy of approximately 6% and 2%, respectively; an astrometric accuracy of 0.24′′; and we estimate that we detect more than 95% of sources with integrated flux densities exceeding nine times the local root mean square noise. This collection contains the individual pointing products, including calibrated uv data (measurement sets and direction-dependent calibration solutions) to allow for re-imaging or post-processing; Stokes I images at 6′′ and 20′′ resolution (with associated scaling factors required to reproduce the mosaic images); Stokes V images at 6′′ resolution for each observing epoch; and Stokes Q and U image cubes at 20′′ and 4′ resolution.

This is pointing P313+10.

Publication: Shimwell et al. 2026 (https://doi.org/10.1051/0004-6361/202557749)

Go to main LoTSS-DR3 Collection

Files

Files (358.9 GB)

Name	Size	Status
images.tar	23.2 GB	Offline	Request
Checksum: md5:3166e67365b5d10ee5aa6cf23b8946e3 EPIC PID: 11112/9fc4814e-470d-4d90-a5cc-2601e5919835 Description: The Stokes I high (6′′) and low (20′′) 120-168MHz continuum images for this pointing (including restored, residual, model and mask images).
misc.tar	249.8 MB	Offline	Request
Checksum: md5:10be61026a9313feedbe1ef624d537f9 EPIC PID: 11112/5dd75692-e5cc-43ce-ac9a-1fc55e72a32e Description: Miscellaneous products (logs and diagnostics) for the direction dependent calibration and imaging processing (DDF-pipeline) of this pointing.
mosaicing_misc.tar	1.7 GB	Online	Download
Checksum: md5:2aba5245d91713aa5fcc351bcde08cf0 EPIC PID: 11112/bfdfeb6f-8fa6-4b36-84a1-64af640e43d0 Description: The flux density scaling factors (NVSS scaling and planar alignment) to be applied during mosaicing as well as the facets identified as bad.
rmsynth_P313+10.tar.gz	13.8 MB	Offline	Request
Checksum: md5:7e6c92a4cccbaf978d40239e8837a5f7 EPIC PID: 11112/7775c2b9-768e-4f20-a527-e8149807c3e4 Description: 20′′ RM-synthesis products, including QU spectra, Faraday depth and polarization maps, noise products and catalogues.
stokes_large.tar	39.8 GB	Online	Download
Checksum: md5:2b4fa14fc89f608c188eaf0f0658aa8f EPIC PID: 11112/1861cf53-8e0e-419c-b44d-fb2974c55b51 Description: The low (20′′) resolution 120-168MHz Stokes Q and U image cubes for this pointing.
stokes_small.tar	9.8 GB	Offline	Request
Checksum: md5:36fd47edc46c0f9019db4d26868af39c EPIC PID: 11112/1ed48639-c44d-4ae3-aeed-90d89c013c0c Description: The very low (4′) resolution 120-168MHz Stokes Q and U image cubes for this pointing and, where available, the low (20′′) resolution Stokes V 120-168MHz image.
uv_L845998.tar	55.4 GB	Offline	Request
Checksum: md5:99e1e4b51932e1b90e3b30b7acd20e8b EPIC PID: 11112/396147de-e040-4529-b78c-33cfad494a48 Description: The uv-data for an individual pointing, together with the accompanying direction-dependent and refined direction-independent calibration solutions. The solutions are to be applied during imaging, along with those from uv_misc.tar, if available. Depending on how the pointing is packaged, the uv data may be provided as a single uv.tar or as multiple uv_LXXXXXX.tar files, where XXXXXX denotes the observation LOFAR LTA SASID of an observing epoch.
uv_L847540.tar	53.7 GB	Offline	Request
Checksum: md5:b9ae13634a6b138c2de866a8f2aa6d83 EPIC PID: 11112/4c9cd26c-6b30-4812-ab54-e6cbbfbf9b43 Description: The uv-data for an individual pointing, together with the accompanying direction-dependent and refined direction-independent calibration solutions. The solutions are to be applied during imaging, along with those from uv_misc.tar, if available. Depending on how the pointing is packaged, the uv data may be provided as a single uv.tar or as multiple uv_LXXXXXX.tar files, where XXXXXX denotes the observation LOFAR LTA SASID of an observing epoch.
uv_L847554.tar	51.7 GB	Offline	Request
Checksum: md5:63c271e934bb8b0f678747ea45eaddf4 EPIC PID: 11112/05f1212c-2ba7-4936-a64a-50e28df6f59d Description: The uv-data for an individual pointing, together with the accompanying direction-dependent and refined direction-independent calibration solutions. The solutions are to be applied during imaging, along with those from uv_misc.tar, if available. Depending on how the pointing is packaged, the uv data may be provided as a single uv.tar or as multiple uv_LXXXXXX.tar files, where XXXXXX denotes the observation LOFAR LTA SASID of an observing epoch.
uv_L847568.tar	51.7 GB	Offline	Request
Checksum: md5:6a8feadae884baf137cef776c0ebfc7b EPIC PID: 11112/adf3cc05-7303-4373-a744-4f14c3a142c0 Description: The uv-data for an individual pointing, together with the accompanying direction-dependent and refined direction-independent calibration solutions. The solutions are to be applied during imaging, along with those from uv_misc.tar, if available. Depending on how the pointing is packaged, the uv data may be provided as a single uv.tar or as multiple uv_LXXXXXX.tar files, where XXXXXX denotes the observation LOFAR LTA SASID of an observing epoch.
uv_L848056.tar	53.7 GB	Offline	Request
Checksum: md5:f0c61c2f1f31eedb272965eb7248c57f EPIC PID: 11112/c6d42bcb-36d2-4328-aac5-471cc282e902 Description: The uv-data for an individual pointing, together with the accompanying direction-dependent and refined direction-independent calibration solutions. The solutions are to be applied during imaging, along with those from uv_misc.tar, if available. Depending on how the pointing is packaged, the uv data may be provided as a single uv.tar or as multiple uv_LXXXXXX.tar files, where XXXXXX denotes the observation LOFAR LTA SASID of an observing epoch.
uv_misc.tar	18.0 GB	Offline	Request
Checksum: md5:fb1581e2659f2a1540e391548a9f9e62 EPIC PID: 11112/c288b96b-807f-47a1-8b59-08683fa36f83 Description: Calibration facet boundaries, calibration sky model, as well as merged and smoothed direction dependent calibration solutions for use during re-imaging.

Additional details

Is described by: Publication: 10.1051/0004-6361/202557749 (DOI)

Created: 2026-02-16
Accepted: 2026-01-13

Metadata

$schema	https://repository.surf.nl/schema/lotss-dr3
accref	https://vo.astron.nl/getproduct/LoTSS-DR3/P313%2B10
centeralpha	313.2369701771658
centerdelta	10.445179722152833
instid	LOFAR.HBA
dateobs	59649.29930555541
naxes	4
pixelsize	19845, 19845, 1, 1
pixelscale	0.00041666667675599456, 0.00041666667675599456
refframe	ICRS
wcs_equinox
wcs_projection	SIN
wcs_refpixel	9923.0, 9923.0
wcs_refvalues	313.23675833333, 10.445388055556
wcs_cdmatrix	-0.00041666667675599456, 0.0, 0.0, 0.00041666667675599456
bandpassid	120-168MHz
bandpassunit	m
bandpassrefval	2.081892
bandpasshi	2.4982705
bandpasslo	1.7844789
pixflags	Z
coverage	309.0739697228324, 6.28031416970499, 308.96154597209716, 14.555101667224696, 317.51197069456293, 14.555101667224696, 317.3995469438278, 6.28031416970499
related_products	https://vo.astron.nl/lotss_dr3/q/dlpointing/dlmeta?ID=ivo%3A//astron.nl/%7E%3FLoTSS-DR3/P313%2B10
datefirstobs	59637.331307870336
datelastobs	59652.29930555541
dateallobs	59637.331307870336, 59649.29930555541, 59650.28680555569, 59651.29930555541, 59652.29930555541
id	P313+10

	All versions	This version
Views	1	1
Downloads	27	27
Data volume	634.9 GB	634.9 GB

The LOFAR Two-metre Sky Survey (LoTSS) VII. Third data release (P313+10)

Files

Files (358.9 GB)

Additional details

Related works

Dates

Collection

The LOFAR Two-metre Sky Survey (LoTSS) VII. Third data release (P313+10)

Creators

Description

Files

Files (358.9 GB)

Additional details

Related works

Dates

Collection