PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/03-16:42:40
G01     121.0          16.5               15.6 +/-    2.53      37.3 +/-    2.53  0.040 / 0.070
G07     74.0           67.8               14.4 +/-    0.70      15.4 +/-    0.70  0.040 / 0.060
G08     46.4           34.8               12.1 +/-    0.48      19.3 +/-    0.48  0.020 / 0.050
G09     177.1          27.9               16.9 +/-    2.81      31.0 +/-    2.81  0.020 / 0.040
G11     110.3          39.0               15.1 +/-    0.76      22.3 +/-    0.76  0.150 / 0.270
G13     318.7          17.6               11.9 +/-    1.64      27.9 +/-    1.64  0.070 / 0.160
G17     201.9          20.3               17.6 +/-    1.85      38.3 +/-    1.85  0.030 / 0.040
G18     96.8           20.0               13.5 +/-    1.03      29.6 +/-    1.03  0.030 / 0.040
G28     289.0          56.5               14.7 +/-    0.63      17.2 +/-    0.63  0.040 / 0.100
G30     343.7          67.1               13.7 +/-    0.57      14.7 +/-    0.57  0.040 / 0.100