 | IAU Symposium 385: Astronomy and Satellite Constellations: Pathways Forward | Monday, 02 October 2023 — 6 a.m. MST | Friday, 06 October 2023 — 6 p.m. MST | Santa Cruz de La Palma, Spain |
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 | Globe at Night October Campaign | Wednesday, 04 October 2023 — midnight MST | Friday, 13 October 2023 — midnight MST | Online event |
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| AURA Recinto Visit | Wednesday, 04 October 2023 — 6 a.m. MST | Wednesday, 04 October 2023 — 8 a.m. MST | AURA Recinto |
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| Cerro Pachón, SOAR, Visit | Friday, 06 October 2023 — 5 a.m. MST | Friday, 06 October 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Gemini Hilo Base Facility, Hawai‘i Visit | Friday, 06 October 2023 — 7 a.m. MST | Friday, 06 October 2023 — 9 a.m. MST | Hilo, Hawai'i |
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| NOIRLab Headquarters | Friday, 06 October 2023 — 10 a.m. MST | Friday, 06 October 2023 — 10 a.m. MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
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| Cerro Tololo Visit | Saturday, 07 October 2023 — 5 a.m. MST | Saturday, 07 October 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Cerro Tololo Visit | Saturday, 07 October 2023 — 9 a.m. MST | Saturday, 07 October 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| AstroDay West, Kona | Saturday, 07 October 2023 — 10 a.m. MST | Saturday, 07 October 2023 — 3 p.m. MST | Kona Commons Mall |
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| Indigenous Peoples Day at the University Of Arizona | Monday, 09 October 2023 — 9 a.m. MST | Monday, 09 October 2023 — 5 p.m. MST | None |
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| Uncovering Transient Physics and Optimizing Cosmological Inference with a Recommendation Engine for Rapid-Response Spectroscopy | Tuesday, 10 October 2023 — 7 a.m. MST | Tuesday, 10 October 2023 — 8 a.m. MST | AURA Lecture Hall |
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| Overnight Telescope Observing Program | Tuesday, 10 October 2023 — 3 p.m. MST | Wednesday, 11 October 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| Overnight Telescope Observing Program | Wednesday, 11 October 2023 — 3 p.m. MST | Thursday, 12 October 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| 7-Dimensional Telescope for Time-Series Spectral Mapping of the Universe | Thursday, 12 October 2023 — 11 a.m. MST | Thursday, 12 October 2023 — noon MST | AURA Lecture Hall |
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| Gemini North, Maunakea, Visit | Thursday, 12 October 2023 — 2 p.m. MST | Thursday, 12 October 2023 — 4 p.m. MST | Maunakea, Hawai'i |
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| Overnight Telescope Observing Program | Thursday, 12 October 2023 — 3 p.m. MST | Friday, 13 October 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| FLASH Talks: Wynn Jacobson-Galán (UC Berkeley) & Itai Sfaradi (Hebrew University of Jerusalem) | Friday, 13 October 2023 — noon MST | Friday, 13 October 2023 — 1 p.m. MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
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| Overnight Telescope Observing Program | Friday, 13 October 2023 — 3 p.m. MST | Saturday, 14 October 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| Cerro Tololo Visit | Saturday, 14 October 2023 — 5 a.m. MST | Saturday, 14 October 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Cerro Tololo Visit | Saturday, 14 October 2023 — 9 a.m. MST | Saturday, 14 October 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Overnight Telescope Observing Program | Saturday, 14 October 2023 — 3 p.m. MST | Sunday, 15 October 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| AURA Recinto Visit | Sunday, 15 October 2023 — 6 a.m. MST | Sunday, 15 October 2023 — 8 a.m. MST | AURA Recinto |
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| Overnight Telescope Observing Program | Sunday, 15 October 2023 — 3 p.m. MST | Monday, 16 October 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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 | Windows on the Universe: Establishing the Infrastructure for a Collaborative Multi-messenger Ecosystem | Monday, 16 October 2023 — 8 a.m. MST | Wednesday, 18 October 2023 — 5 p.m. MST | Tucson, Arizona |
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| Overnight Telescope Observing Program | Monday, 16 October 2023 — 3 p.m. MST | Tuesday, 17 October 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| Overnight Telescope Observing Program | Tuesday, 17 October 2023 — 3 p.m. MST | Wednesday, 18 October 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| AURA Recinto Visit | Wednesday, 18 October 2023 — 6 a.m. MST | Wednesday, 18 October 2023 — 8 a.m. MST | AURA Recinto |
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 | Firmin J. Oliveira: The theory that gravitons lose energy by way of gravitational redshift | Thursday, 19 October 2023 — 2 p.m. MST | Thursday, 19 October 2023 — 3 p.m. MST | Gemini North Hilo Base Facility | 670 N A’ohoku Place Hilo, Hawaii, 96720, USA |
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| Cerro Pachón, SOAR, Visit | Friday, 20 October 2023 — 5 a.m. MST | Friday, 20 October 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| FLASH Talks: Roohi Dalal (Princeton) & Danielle Frostig (MIT) | Friday, 20 October 2023 — noon MST | Friday, 20 October 2023 — 1 p.m. MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
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| BUSD Communit Day | Friday, 20 October 2023 — 3 p.m. MST | Friday, 20 October 2023 — 6 p.m. MST | Sells, Arizona |
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| Cerro Tololo Visit | Saturday, 21 October 2023 — 5 a.m. MST | Saturday, 21 October 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Cerro Tololo Visit | Saturday, 21 October 2023 — 9 a.m. MST | Saturday, 21 October 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Gemini North, Maunakea, Visit | Thursday, 26 October 2023 — 2 p.m. MST | Thursday, 26 October 2023 — 4 p.m. MST | Maunakea, Hawai'i |
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| Globe at Night November Campaign | Friday, 03 November 2023 — midnight MST | Sunday, 12 November 2023 — midnight MST | Online event |
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| Cerro Pachón, SOAR, Visit | Friday, 03 November 2023 — 5 a.m. MST | Friday, 03 November 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| NOIRLab Headquarters | Friday, 03 November 2023 — 10 a.m. MST | Friday, 03 November 2023 — noon MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
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| FLASH Talks: Katie Merrell (AAS) & Rahma Alfarsy (Univ. of Portsmouth) | Friday, 03 November 2023 — noon MST | Friday, 03 November 2023 — 1 p.m. MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
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| Gemini Hilo Base Facility, Hawai‘i Visit | Friday, 03 November 2023 — 1 p.m. MST | Friday, 03 November 2023 — 3 p.m. MST | Hilo, Hawai'i |
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| Cerro Tololo Visit | Saturday, 04 November 2023 — 5 a.m. MST | Saturday, 04 November 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Cerro Tololo Visit | Saturday, 04 November 2023 — 9 a.m. MST | Saturday, 04 November 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Gemini North, Maunakea, Visit | Thursday, 09 November 2023 — 2 p.m. MST | Thursday, 09 November 2023 — 4 p.m. MST | Maunakea, Hawai'i |
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| Overnight Telescope Observing Program | Thursday, 09 November 2023 — 3 p.m. MST | Friday, 10 November 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| Girl Scouts of Hawaiʻi STEM Festival | Friday, 10 November 2023 — midnight MST | Friday, 10 November 2023 — midnight MST | TBD |
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| Cerro Pachón, Gemini South, Visit | Friday, 10 November 2023 — 5 a.m. MST | Friday, 10 November 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Overnight Telescope Observing Program | Friday, 10 November 2023 — 3 p.m. MST | Saturday, 11 November 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Cerro Tololo Visit | Saturday, 11 November 2023 — 5 a.m. MST | Saturday, 11 November 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Cerro Tololo Visit | Saturday, 11 November 2023 — 9 a.m. MST | Saturday, 11 November 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Overnight Telescope Observing Program | Saturday, 11 November 2023 — 3 p.m. MST | Sunday, 12 November 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| Overnight Telescope Observing Program | Sunday, 12 November 2023 — 3 p.m. MST | Monday, 13 November 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
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| Overnight Telescope Observing Program | Monday, 13 November 2023 — 3 p.m. MST | Tuesday, 14 November 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Tuesday, 14 November 2023 — 3 p.m. MST | Wednesday, 15 November 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Wednesday, 15 November 2023 — 3 p.m. MST | Thursday, 16 November 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Thursday, 16 November 2023 — 3 p.m. MST | Friday, 17 November 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Cerro Pachón, SOAR, Visit | Friday, 17 November 2023 — 5 a.m. MST | Friday, 17 November 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| FLASH Talks: Allison Towner (Steward) & Yoon Chan Taak (UCLA) | Friday, 17 November 2023 — noon MST | Friday, 17 November 2023 — 1 p.m. MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
|---|
| Cerro Tololo Visit | Saturday, 18 November 2023 — 5 a.m. MST | Saturday, 18 November 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Cerro Tololo Visit | Saturday, 18 November 2023 — 9 a.m. MST | Saturday, 18 November 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Cerro Pachón, Gemini South, Visit | Friday, 24 November 2023 — 5 a.m. MST | Friday, 24 November 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Cerro Tololo Visit | Saturday, 25 November 2023 — 5 a.m. MST | Saturday, 25 November 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Cerro Tololo Visit | Saturday, 25 November 2023 — 9 a.m. MST | Saturday, 25 November 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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| Congreso de Párvulos | Wednesday, 29 November 2023 — 7 a.m. MST | Wednesday, 29 November 2023 — 10 a.m. MST | La Serena, Chile |
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| Cerro Pachón, SOAR, Visit | Friday, 01 December 2023 — 5 a.m. MST | Friday, 01 December 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| NOIRLab Headquarters | Friday, 01 December 2023 — 10 a.m. MST | Friday, 01 December 2023 — 10 a.m. MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
|---|
| FLASH Talks: Sean Linden (Steward) & Jimena Rodriquez (Steward) | Friday, 01 December 2023 — noon MST | Friday, 01 December 2023 — 1 p.m. MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
|---|
| Gemini Hilo Base Facility, Hawai‘i Visit | Friday, 01 December 2023 — 1 p.m. MST | Friday, 01 December 2023 — 3 p.m. MST | Hilo, Hawai'i |
|---|
| Cerro Tololo Visit | Saturday, 02 December 2023 — 5 a.m. MST | Saturday, 02 December 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Cerro Tololo Visit | Saturday, 02 December 2023 — 9 a.m. MST | Saturday, 02 December 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Globe at Night December Campaign | Sunday, 03 December 2023 — midnight MST | Tuesday, 12 December 2023 — midnight MST | Online event |
|---|
| AURA Recinto Visit | Wednesday, 06 December 2023 — 6 a.m. MST | Wednesday, 06 December 2023 — 8 a.m. MST | AURA Recinto |
|---|
| Gemini North, Maunakea, Visit | Thursday, 07 December 2023 — 2 p.m. MST | Thursday, 07 December 2023 — 4 p.m. MST | Maunakea, Hawai'i |
|---|
| FLASH Talks: Yunchong (Richie) Wang (Stanford) & TBA | Friday, 08 December 2023 — noon MST | Friday, 08 December 2023 — 1 p.m. MST | NOIRLab Headquarters | 950 North Cherry Ave., Tucson, AZ 85719 |
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| Overnight Telescope Observing Program | Friday, 08 December 2023 — 3 p.m. MST | Saturday, 09 December 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Saturday, 09 December 2023 — 3 p.m. MST | Sunday, 10 December 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Sunday, 10 December 2023 — 3 p.m. MST | Monday, 11 December 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Monday, 11 December 2023 — 3 p.m. MST | Tuesday, 12 December 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Tuesday, 12 December 2023 — 3 p.m. MST | Wednesday, 13 December 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Wednesday, 13 December 2023 — 3 p.m. MST | Thursday, 14 December 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Overnight Telescope Observing Program | Thursday, 14 December 2023 — 3 p.m. MST | Friday, 15 December 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Cerro Pachón, SOAR, Visit | Friday, 15 December 2023 — 5 a.m. MST | Friday, 15 December 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Overnight Telescope Observing Program | Friday, 15 December 2023 — 3 p.m. MST | Saturday, 16 December 2023 — noon MST | Kitt Peak National Observatory | Kitt Peak National Observatory, Tucson, AZ 85634, USA |
|---|
| Cerro Tololo Visit | Saturday, 16 December 2023 — 5 a.m. MST | Saturday, 16 December 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Cerro Tololo Visit | Saturday, 16 December 2023 — 9 a.m. MST | Saturday, 16 December 2023 — 11 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| AURA Recinto Visit | Wednesday, 20 December 2023 — 6 a.m. MST | Wednesday, 20 December 2023 — 8 a.m. MST | AURA Recinto |
|---|
| Gemini North, Maunakea, Visit | Thursday, 21 December 2023 — 2 p.m. MST | Thursday, 21 December 2023 — 4 p.m. MST | Maunakea, Hawai'i |
|---|
| Cerro Pachón, Gemini South, Visit | Friday, 22 December 2023 — 5 a.m. MST | Friday, 22 December 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
|---|
| Cerro Pachón, SOAR, Visit | Friday, 29 December 2023 — 5 a.m. MST | Friday, 29 December 2023 — 7 a.m. MST | Cerro Tololo Inter-American Observatory Summit | Cerro Tololo, Vicuña, Región de Coquimbo, Chile |
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