News

The new portal is LIVE!

LCO's new observing portal is now available! Thanks for your patience while we brought the portal online. We think that you'll like it.

Coming soon: new user portal

In June, LCO will unveil a new observing portal, the interface through which you interact with the Network. This new portal has been developed (under the codename "Valhalla") over many months. We expect that the re-designed portal will be easier for you to use: to compose observation requests, to check the status of those requests, to retrieve your data, and to monitor the hours remaining for your science project. The big change for us here at LCO is that the new portal will be easier for our software team to maintain and improve.

FLUXAPER values in image headers

We recently discovered an error in our BANZAI data pipeline. In the source catalogs (i.e. the .CAT extensions) that accompany the reduced images, the set of FLUXAPER* keywords are used to indicate the source fluxes within circular apertures of * arcseconds in diameter. For example, FLUXAPER3 is the source flux in a 3-arcsec diameter aperture. ----- The error in the pipeline was that the fluxes were being calculated within circular apertures of * pixels (rather than arcseconds) in diameter. So, in the example above, FLUXAPER3 was actually the source flux in a 3-pixel diameter aperture, even though the description in the header said 3-arcsecond diameter.

The situation at LSC

We have had to discontinue observations with the telescope in Dome C at our Chilean site (LSC). The Sinistro camera in that dome (fl04) appeared to have a steep drop in temperature on 2017-05-07. The drop was actually a symptom of a problem with a circuit boards on the camera controller. A replacement board has been sent to Chile; the camera will be offline until the swap can be made.

FLOYDS "sky" mode fixed

We have debugged the "Sky" slit positioning mode on FLOYDS. "Sky" mode allows you to fix the position angle of the slit. (The more commonly-used mode sets the slit at the parallactic angle.) The change will take effect with FLOYDS observations beginning tonight (2017-04-28) on Maui.