1. Harvard-Smithsonian Ctr. for Astrophysics (United States)
2. Univ. of Chicago (United States)
3. Korea Astronomy and Space Science Institute (Korea, Republic of)
4. The Observatories of the Carnegie Institution for Science (United States)
5. Lick Observatory, Univ. of California, Santa Cruz (United States)
6. Massachusetts Institute of Technology (United States)
7. Pontificia Univ. Católica de Chile (Chile)
8. Univ. de São Paulo (Brazil)
9. Steward Observatory, Univ. of Arizona (United States)