G00-G99
- G42: Observatorio Astronómico UAdeC, Saltillo, Mexico (Autonomous University of Coahuila Astronomical Observatory)
- G43: Observatorio Buenaventura Suarez, San Luis, Argentina
- G44: Observatorio Longa Vista, Itatiba, SP, Brazil
- G45: Space Surveillance Telescope, Atom Site
- G46: Northwest Florida State College Observatory, Florida, USA
- G47: HillTopTop Observatory, Edgewood, New Mexico, USA
- G48: Doc Greiner Research Obs., Rancho Hildalgo, New Mexico, USA
- G49: Minnetonka, Minnesota, USA
- G50: Organ Mesa Observatory, Las Cruces, New Mexico, USA
- G51: Byrne Observatory, Sedgwick Reserve, California, USA
- G52: Stone Edge Observatory, El Verano, California, USA
- G53: Alder Springs Observatory, Auberry, California, USA
- G54: Hemet, California, USA
- G55: Bakersfield, California, USA
- G56: Walnut Creek, California, USA
- G57: Dilbert Observatory, Forest Grove, Oregon, USA
- G58: Chabot Space and Science Center, Oakland, California, USA
- G59: Maiden Lane Obs., Bainbridge Island, Washington, USA
- G60: Carroll Observatory, Montecito, California, USA
- G61: Pleasanton, California, USA
- G62: Sunriver Nature Center Observatory, Sunriver, Oregon, USA
- G63: Mill Creek Observatory, The Dalles, Oregon, USA
- G64: Blue Canyon Observatory, California, USA
- G65: Vulcan North, Lick Observatory, Mount Hamilton, California, USA
- G66: Lake Forest Observatory, Forest Hills, California, USA
- G67: Rancho del Sol, Camino, California, USA
- G68: Sierra Stars Observatory, Markleeville, California, USA
- G69: Thousand Oaks, California, USA
- G70: Francisquito Observatory, Los Angeles, California, USA
- G71: Rancho Palos Verdes, California, USA
- G72: University Hills, California, USA
- G73: Mount Wilson-TIE, California, USA
- G74: Boulder Knolls Observatory, Escondido, California, USA
- G75: Starry Knight Observatory, Coto de Caza, California, USA
- G76: Altimira Observatory, Coto de Caza, California, USA
- G77: Baldwin Lake, California, USA
- G78: Desert Wanderer Observatory, El Centro, California, USA
- G79: Goat Mountain Astronomical Research Station
- G80: Sierra Remote Observatories, Auberry, California, USA
- G81: Temecula, California, USA
- G82: SARA Observatory, Kitt Peak, Arizona, USA
- G83: Mt. Graham-LBT, Arizona, USA (Large Binocular Telescope)
- G84: Mount Lemmon SkyCenter, Arizona, USA
- G85: Vermillion Cliffs Observatory, Kanab, Arizona, USA
- G86: Tucson-Winterhaven, Arizona, USA
- G87: Calvin M. Hooper Memorial Observatory, Hyde Park
- G88: LAMP Observatory, New River, Arizona, USA
- G89: Kachina Observatory, Flagstaff, Arizona, USA
- G90: Three Buttes Observatory, Tucson, Arizona, USA
- G91: Whipple Observatory, Mt. Hopkins—2MASS (Fred Lawrence Whipple Observatory), Arizona, USA
- G92: Jarnac Observatory, Vail, Arizona, USA
- G93: Sonoita Research Observatory, Sonoita, Arizona, USA
- G94: Sonoran Skies Observatory, St. David, Arizona, USA
- G95: Hereford Arizona Observatory, Hereford, Arizona, USA
- G96: Mt. Lemmon Survey, Arizona, USA
- G97: Astronomical League Alpha Observatory, Portal
- G98: Calvin-Rehoboth Observatory, Rehoboth, New Mexico, USA
- G99: NF Observatory, Silver City, New Mexico, USA
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