Antenna Sites

Table 1 gives the geographic locations of the ten stations comprising the VLBA, ordered from East through West.  All locations are based on the WGS84 ellipsoid used by the GPS system, with Earth radius \(a=6378.137\: \rm{km}\)      and flattening \(1/f=298.257223563\).      See Napier (1995) for further site information.

 

Table 1: Geographic Locations of VLBA Stations
North West
Latitude Longitude Elevation Code
Location [° ′ ″] [ ° ′ ″] [m]
Saint Croix, VI 17:45:23.68 64:35:01.07 -15 SC
Hancock, NH 42:56:00.99 71:59:11.69 296 HN
North Liberty, IA 41:46:17.13 91:34:26.88 222 NL
Fort Davis, TX 30:38:06.11 103:56:41.34 1606 FD
Los Alamos, NM 35:46:30.45 106:14:44.15 1962 LA
Pie Town, NM 34:18:03.61 108:07:09.06 2365 PT
Kitt Peak, AZ 31:57:22.70 111:36:44.72 1902 KP
Owens Valley, CA 37:13:53.95 118:16:37.37 1196 OV
Brewster, WA 48:07:52.42 119:40:59.80 250 BR
Mauna Kea, HI 19:48:04.97 155:27:19.81 3763 MK

 

Several other radio telescopes often participate in VLBI observing in conjunction with the VLBA.   A High Sensitivity Array (HSA) currently comprises the VLBA, Karl G. Jansky Very Large Array (VLA), Robert C. Byrd Green Bank Telescope (GBT),  Arecibo, and Effelsberg telescopes; locations of the HSA telescopes are listed in Table 2.  The HSA is described in detail in Section 14.2 of this document.

 

Table 2: Locations of HSA Telescopes
North West
Latitude Longitude Elevation Code
Location [° ′ ″] [ ° ′ ″] [m]
VLA, NM 34:04:43.75 107:37:05.91 2115 Y27
Green Bank, WV 38:25:59.24 79:50:23.41 824 GB
Arecibo, PR 18:20:36.60 66:45:11.10 451 AR
Effelsberg, Germany 50:31:29.39 −6:53:01.00 417 EB

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