PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-13:43:10
G01     122.1          15.6               10.9 +/-    1.85      26.7 +/-    1.85  0.050 / 0.030
G07     70.8           68.1                9.0 +/-    0.64       9.6 +/-    0.64  0.040 / 0.030
G08     46.4           34.1                8.6 +/-    1.86      13.9 +/-    1.86  0.020 / 0.030
G09     176.3          28.2                9.3 +/-    1.48      16.9 +/-    1.48  0.030 / 0.040
G11     110.7          38.4               10.0 +/-    1.11      14.9 +/-    1.11  0.120 / 0.230
G13     319.1          16.7                5.9 +/-    2.69      14.1 +/-    2.69  0.110 / 0.230
G17     200.9          20.8                8.2 +/-    2.95      17.7 +/-    2.95  0.190 / 0.310
G18     97.6           19.4                9.2 +/-    1.55      20.5 +/-    1.55  0.210 / 0.300
G28     286.1          55.8                7.9 +/-    3.14       9.3 +/-    3.14  0.200 / 0.230
G30     339.5          65.0                9.0 +/-    0.83       9.9 +/-    0.83  0.150 / 0.260