benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 pota, 2001-09-09,  JMS ,   ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.4317, 1.4788, 30, 16480
 pota, 2001-09-13,  WRT ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992801,  NONE, 1.4609, 1.5078, 30, 182530
 pota, 2001-09-14,  WRT ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992801,  NONE, 1.4609, 1.5078, 30, 0
 pota, 2001-09-15,  WRT ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992801,  NONE, 1.4609, 1.5078, 30, 0
 pota, 2001-09-16,  WRT ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992801,  NONE, 1.4609, 1.5078, 30, 0
 pota Pota_USGS, 2005-09-13,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 1.3218, 1.3699, 30, 163330
 pota Pota_USGS, 2006-09-14,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 0.5762, 0.6398, 30, 0
 pota Pota_USGS, 2010-09-23,  WRT ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.6699, 0.7298, 15, 0