November 12, 2004:
Several sections have been updated and/or bugfixed. Most noteworthy are the User's guide chapter 5 and the addition of a full command list.

September 24, 2004:
An analysis of the LIRIS image quality is available now from the starting page. We recommend all observers with imaging programmes to read it carefully.

May 24, 2004:
The scheduling of LIRIS at the WHT for semester 2004B has been published. If observing time was allocated to your proposal, then please check the timetable for consistency.

May 10, 2004:
LIRIS goes to the telescope again in June 2004. It will perform its first service night on June 4th, followed by 4 nights of granted time for the IAC LIRIS instrument team. This will be the first time that LIRIS pursues exclusively scientific programmes only. The instrument performance (which has been excellent so far) will be monitored closely during this run, so that we can gain more experience before LIRIS will be used the first time by visiting observers later this year.

May 10, 2004:
A new long slit mask with an 0.65" wide slit has been inserted into the LIRIS cryostat. See the latest LIRIS configuration.

March 09, 2004:
The exact date is unknown when Supernova SN2004an went off in the star-forming galaxy M82, mostly unnoticed by astronomers. Yet it is the closest Supernova since 10 years, and together with its twin SN1993J in M81 the second closest one since the invention of the telescope four centuries ago. Only SN1987A in the Large Magellanic Cloud was even nearer. Being hidden behind huge amounts of gas and dust, SN2004an was extraordinary difficult to discover, not to mention the proof of its explosive nature. LIRIS, however, could peer through all the obscuring foreground material by means of its near-infrared view, took images and spectra of the object and confirmed its SN nature (IAUC 8299).
More LIRIS observations of SN2004an will follow later this year, in order not to lose the rare opportunity to further analyse such a nearby SN.