2021-Jan-15: Altair has been repaired and is now in a state where it can be used in Natural Guide Star (NGS) mode. We will resume offering Altair in NGS mode starting with the upcoming Fast Turnaround cycle. Further work is needed before we can offer Altair in Laser Guide Star (LGS) mode.
2021-Mar-25: Laser Guide Star (LGS) mode is now available for the 2021 March Fast Turnaround cycle with NIRI, and for 2021B Queue proposals with NIFS, NIRI, and GNIRS.