Category Archives: Uncategorized

Onsala’s LOFAR station: ready for the universe

We now have a finished field of LBA antennas and the station is already complete. Leif will doubtless update with the facts and figures. In the meantime, this is a picture I took yesterday afternoon of the new LBA field … Continue reading

Posted in Uncategorized | Comments Off on Onsala’s LOFAR station: ready for the universe

Installation Week #4

  HBA field is finally installed, last tile placed June 22 2011. All the tools have been sent to the next installation site, which starts a week from now at Kilpisjärvi, Finland. All LBA meches have been placed, and 69 LBA … Continue reading

Posted in Uncategorized | Comments Off on Installation Week #4

Installation Week #3

73 tiles installed, 24 more to go next week 192 markers positioned for LBA antennas 47 LBA meshes placed and anchored Four LBA antennas erected The fence installation have started,  and now two meter high fence poles is surrounding the … Continue reading

Posted in Uncategorized | Comments Off on Installation Week #3

Installation Week #2

12 trucks with total of 49 tiles and lids have been delivered so far, 39 tiles is installed and 10 in storage for next week, Thursday we had rain and high wind speeds and managed only to place one tile, … Continue reading

Posted in Uncategorized | Comments Off on Installation Week #2

Onsala’s first LOFAR antennas pass the moose test

Daniel Johansson making sure the HBA tile lid is on right. Mooseprint in the forest next to the field The Onsala LOFAR station has its first antennas in place. 27 of the station’s 96 high-frequency antenna tiles arrived by truck … Continue reading

Posted in Uncategorized | Comments Off on Onsala’s first LOFAR antennas pass the moose test

Installation Week #1

Delivery of tiles and lids have continued, six trucks have been sucessfully unloaded so far 20 tiles with lids is now stored and secured under tarpaulins at the site. Cords with over thousand bowline knots tied to anchors 860 meters … Continue reading

Posted in Uncategorized | Comments Off on Installation Week #1

Installation Countdown…

The latest weeks have been very intense with preparations prior the LOFAR installation. The HBA surface is now accepted and handed over to OSO and the first transports with installation tools and HBA-tiles have been delivered. A team of total … Continue reading

Posted in Uncategorized | Comments Off on Installation Countdown…

LOFAR antenna visits the Science Festival in Göteborg

The Göteborg Science Festival (www.vetenskapsfestivalen.se) is in full swing. Onsala Space Observatory is running a number of events at the festival. As part of the fun, we have a specially-built model LBA antenna which now has pride of place at … Continue reading

Posted in Uncategorized | Comments Off on LOFAR antenna visits the Science Festival in Göteborg

Fieldwork and photography, May 5

Wednesday at the Onsala LOFAR field was sunny and productive. Astronomy PhD student Haukur Sigurðarson did his stint working on the field and took along his camera. – I wanted to get an overview of the whole field, and just … Continue reading

Posted in Uncategorized | Comments Off on Fieldwork and photography, May 5

Snow, snakes and 19 kilometres of cable

Station construction works better in good weather. Tuesday’s cold and wet conditions made the cables much harder to handle, reports Leif Helldner, and made it tough to keep up last week’s impressive pace. By Friday the team had rolled out … Continue reading

Posted in Uncategorized | Comments Off on Snow, snakes and 19 kilometres of cable