Upcoming VO service downtime | 25 Jan 2026

Quarterly maintenance at the National Computational Infrastructure (NCI) will take many of the SkyMapper VO services offline from 6:00 pm AEDT Monday 2 February to 12:00 pm (noon) AEDT Wednesday 4 February. The downtime will enable work to be done on the electrical and cooling systems at NCI.

We apologise for any convenience, and hope to have the VO services restored soon after the NCI systems are back online.

VO Services Restored | 11 Nov 2025

The team at the National Computational Infrastructure has resolved the system fault that was affecting TAP/ADQL, cone search, and Object Viewer functions. All systems of the SkyMapper node of the All-Sky Virtual Observatory should now be operating normally.

Hazard warning | 8 Nov 2025

Cone search, TAP/ADQL query services, and DR4 Object Viewer pages are currently experiencing a system error. We are working to bring the services back online and apologise for any inconvenience.

SMSS DR4 AVAILABLE! | 6 Feb 2024

SkyMapper Southern Survey Data Release 4 (SMSS DR4)

We are pleased to announce the immediate availability of Data Release 4 from the SkyMapper Southern Survey.

SMSS DR4 contains optical photometry in the 6 SkyMapper filters (u,v,g,r,i,z) for ~700 million astrophysical sources over 26,000 sq.deg, ranging from the South Celestial Pole to Dec=+16° for objects with data in all bands, and some sources as far North as +29°. The photometry is drawn from over 15 billion measurements made from more than 400,000 images acquired by the 1.3m SkyMapper telescope between March 2014 ...

5 TB of new external tables! | 7 Jul 2023

In anticipation of the upcoming SMSS DR4, we are making available ~5 TB of new external tables in the TAP service of SkyMapper's All-Sky Virtual Observatory (ASVO) node.

Several of these are entirely new catalogues for the SkyMapper node:

• CatWISE2020 Catalog (all-sky, W1/W2) - ext.catwise2020

• NOIRLab Source Catalog (NSC) Data Release 2 (35,000 deg², u/g/r/i/z/Y/VR) - ext.nsc_dr2

• Southern Photometric Local Universe (S-PLUS) Survey Data Release 3 (2,000 deg², u^*/g/r/i/z + 7 narrow bands) - ext.splus_dr3

Others represent updates to previous data releases:

• DESI Legacy Imaging Surveys ...