PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-19:13:10
G01     39.5           13.6                8.6 +/-    0.74      22.2 +/-    0.74  0.080 / 0.170
G02     199.7          11.2                6.7 +/-   25.58      18.1 +/-   25.58  0.070 / 0.210
G06     172.8          44.3               16.7 +/-    0.75      22.8 +/-    0.75  0.090 / 0.160
G13     234.6          19.5               15.4 +/-    1.70      34.3 +/-    1.70  0.090 / 0.160
G15     268.9          10.8               12.5 +/-    2.60      34.2 +/-    2.60  0.260 / 0.510
G17     4.1            68.7               13.0 +/-    0.39      13.9 +/-    0.39  0.310 / 0.350
G19     283.9          69.0               12.7 +/-    0.78      13.6 +/-    0.78  0.080 / 0.450
G24     314.9          22.8                7.6 +/-    1.11      15.6 +/-    1.11  0.130 / 0.410
G28     76.5           44.9               12.9 +/-    0.59      17.3 +/-    0.59  0.030 / 0.040
G30     155.5          23.8               14.4 +/-    1.81      29.0 +/-    1.81  0.040 / 0.030