PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-20:57:50
G02     352.2291       75.5507         10.7980 +/-  0.5595   11.1133 +/-  0.5595  0.050 / 0.090
G05     163.4555       39.5358         13.3755 +/-  0.8602   19.6033 +/-  0.8602  0.070 / 0.100
G06     44.5240        32.4818          9.8301 +/-  1.1407   16.3702 +/-  1.1407  0.040 / 0.060
G12     281.6938       79.4389          9.5389 +/-  0.9894    9.6862 +/-  0.9894  0.040 / 0.070
G19     83.6331        20.6800         11.8542 +/-  1.0660   25.6549 +/-  1.0660  0.100 / 0.200
G24     223.8648       17.7417         14.4972 +/-  1.9290   33.7164 +/-  1.9290  0.100 / 0.240
G25     314.0998       40.6034         11.6055 +/-  2.3384   16.7156 +/-  2.3384  0.030 / 0.030
G29     292.6786       14.6161         11.7330 +/-  2.0461   29.4564 +/-  2.0461  0.030 / 0.030