PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-09:58:10
G01     123.5          14.5                6.8 +/-    1.99      17.1 +/-    1.99  0.030 / 0.040
G07     67.6           68.3                5.6 +/-    0.51       6.0 +/-    0.51  0.020 / 0.040
G08     46.8           34.4                2.8 +/-    0.37       4.5 +/-    0.37  0.030 / 0.040
G09     174.6          27.5                6.5 +/-    1.22      12.1 +/-    1.22  0.030 / 0.040
G11     111.9          37.8                7.2 +/-    1.01      10.9 +/-    1.01  0.150 / 0.300
G13     319.7          15.6                2.0 +/-    2.67       5.0 +/-    2.67  0.180 / 0.260
G17     200.0          20.5                6.5 +/-    0.97      14.1 +/-    0.97  0.100 / 0.260
G18     98.3           18.7                6.3 +/-    1.81      14.3 +/-    1.81  0.100 / 0.230
G28     282.3          54.6                6.0 +/-    0.83       7.1 +/-    0.83  0.130 / 0.450
G30     336.1          63.1                4.4 +/-    0.56       4.9 +/-    0.56  0.100 / 0.410