Preparing for WINERED observations at LCO

The WINERED is open to use by general users who have access to the Magellan telescope time. Please check the Information on the WINERED with Magellan for 2024A for planning observations in the 2024A semester.

Please find here the information on observations with the WINERED attached to the 6.5-m Magellan Telescope (Clay) at LCO, Chile.


How to use the WINERED for your science

This lists a typical sequence of the steps for using the WINERED.


Some parameters of the Magellan Clay telescope and the WINERED attached to it

Telescope aperture6.5m
PlatformEast Nathmyth platform of Clay
Pixel Scale0.144 arcsec/pixel
Slit Width0.3 arcsec (100 μm), 0.42 arcsec (140 μm), 0.6 arcsec (200 μm), 1.2 arcsec (400 μm)
Slit Length9.0 arcsec (62 pixels)
FOV of Slit Viewer52 arcsec × 38 arcsec
Sensitivity of Slit ViewerSensitive to 0.6—0.9 μm (R and I bands)
More telescope information


We request each program send an observer (or observers) to the Las Campanas Observatory in order to conduct the operation of WINERED by themselves. The WINERED team will be at the observatory to support the observer(s) by giving instructions on the operation to unfamiliar observers and by trying to solve instrumental troubles.


Data and analysis

Follow this link to check the public information on the WINERED data and WINERED Automatic Reduction Pipeline (WARP).




Agreement required before the proposal submission

The WINERED is a high-resolution specrograph covering 0.9—1.35 μm (Ikeda et al. 2022), which is currently a PI instrument available at the Magellan 6.5-m telescope (Clay). It is going to be available to each person who has access to the Magellan telescope time, but an agreement should be made with the WINERED team before the proposal is submitted. The agreement would include that 20 percent (by default) of the allocated time would be used by the WINERED team for their own observations. Please check the agreement described at the following page:



In your papers, please cite Ikeda et al. 2022 and include the following acknowledgement.
This paper includes the WINERED data gathered with the 6.5 meter Magellan Telescope located at Las Campanas Observatory, Chile.

Also, in your press releases, please give an explanation of the WINERED like follows (besides the acknowledgement to the Magellan telescope and the Las Campanas Observatory).
The data used for this research were (partly) obtained with the WINERED near-infrared spectrograph, which was constructed and operated by the Japanese team from Kyoto Sangyo University and the University of Tokyo.



winered-contact (at)