PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/09-19:12:40
G01     41.4           16.8                8.6 +/-    1.04      20.6 +/-    1.04  0.100 / 0.150
G06     173.9          39.8               14.0 +/-    1.50      20.4 +/-    1.50  0.080 / 0.120
G13     238.0          22.3               13.1 +/-    1.13      27.3 +/-    1.13  0.170 / 0.260
G15     272.5          12.2               11.5 +/-    1.55      30.6 +/-    1.55  0.130 / 0.310
G17     354.9          71.8               11.5 +/-    0.54      12.0 +/-    0.54  0.100 / 0.260
G19     272.3          67.1               10.7 +/-    0.91      11.5 +/-    0.91  0.250 / 0.330
G24     316.5          19.5               11.0 +/-    2.16      24.6 +/-    2.16  0.040 / 0.040
G28     71.2           47.0               10.0 +/-    0.38      13.1 +/-    0.38  0.030 / 0.040
G30     154.5          27.9               13.6 +/-    2.27      24.9 +/-    2.27  0.040 / 0.050