benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 hotc, 1999-09-13,  GDH ,   ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.4105, 1.4578, 30, 15570
 hotc, 1999-09-24,  GDH ,   ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.4186, 1.4658, 30, 15390
 hotc, 2003-06-19,  ETE ,  USGS CVO ,  ASHTECH,  LP019992604 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993302,  NONE, 1.3723, 1.4199, 30, 14110
 hotc, 2003-06-24,  ETE ,  USGS CVO ,  ASHTECH,  LP019992604 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993302,  NONE, 1.338, 1.386, 30, 141630
 hotc Hotc_02-RU_1997_CalT, 2008-09-13,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 0.7205, 0.7788, 30, 15190
 hotc Hotc_02-RU_1997_CalT, 2008-09-15,  SAH ,  USGS ,  ASHTECH,  579 ,  Z-XII 1L00,  ASH700936D_M,  CR14244,  NONE, 1.2571, 1.3059, 30, 155830
 hotc Hotc_02-RU_1997_CalT, 2013-09-09,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.8376, 0.8929, 15, 172145
 hotc Hotc_02-RU_1997_CalT, 2013-09-10,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.8376, 0.8929, 15, 0
 hotc Hotc_02-RU_1997_CalT, 2013-09-11,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.8376, 0.8929, 15, 0
 hotc Hotc_02-RU_1997_CalT, 2013-09-12,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.8376, 0.8929, 15, 0