GeminiFocus April 2018 | Page 21

was due to Rapid, rather than Standard, ToO triggers (the peak in August was due to the LIGO gravitational wave event). We had frequent visiting observers in the South as well: among them four conducted Priority Visitor runs, and visiting Korean as- tronomers occupied two time blocks. We also received Phoenix at the telescope as a visiting instrument late in 2017. FLAMINGOS-2’s on-instrument wavefront sensor (OIWFS) continued to generate me- chanical problems, and we had planned an intervention early in the semester. As men- tioned above, the LIGO gravitational wave event caused us to delay repairs, which we completed late in 2017. Multi-Object Spec- troscopy (MOS) commissioning of FLAMIN- GOS-2 was delayed (as the MOS relies on the OIWFS) but is now underway. Finally, the Gemini Multi-conjugate adaptive optics Sys- tem/Gemini South Adaptive Optics Imager operation profited greatly from the new TOPTICA laser (see page 14). Possible Ways to Access ANTARES The future Large Synoptic Survey Telescope (LSST) alert stream of detected transient ob- jects is anticipated to amount to ten million raw alerts per night, and we expect to have a significant number of Principal Investiga- tor programs following up on these events with Gemini