benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 pm14 PM_1.42_CalTrans, 2006-07-18,  CHS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 1.46, 1.5069, 30, 15490
 pm14 PM_1.42_CalTrans, 2006-07-19,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945B_M,  CR519993703,  NONE, 1.2359, 1.2849, 30, 15400
 pm14 PM_1.42_CalTrans, 2007-07-17,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.4741, 1.5209, 30, 15420
 pm14 PM_1.42_CalTrans, 2007-07-18,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L00,  ASH701945B_M,  CR519993706,  NONE, 1.4439, 1.4909, 30, 154430