System maintenance of HOWDY-R, TogoVar, part of LSDB Archive and RDF Portal (Feb. 19 to 22, 2021)

  • Others
  • Maintenance
  • LSDB Archive
  • TogoVar
  • RDF Portal
  • Other services
Feb 3, 2021

The following services will be temporarily unavailable from Feb. 19 to 22, 2021 due to server maintenance. The schedule might be changed without advance notice.

Thank you for your understanding and cooperation.


From 1:00 pm on February 19 (Fri) to 2:00 pm on February 22 (Mon), 2021 (JST)

Services concerned

  • NBDC RDF Portal (
    • SPARQL endpoints other than the primary endpoint (
    • The primary endpoint is available.
  • HOWDY-R (
  • TogoVar (
  • Following services of LSDB Archive (The main site itself will be available.)
    • Download service (FTP, HTTPS)
    • Basic search service

Inquiries & opinions

Feel free to contact us if you have any questions about this website or the web-based services that NBDC provides or wish to consult with us regarding research data or databases.