PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-03:27:50
G01     66.7           32.3                4.6 +/-    1.49       7.7 +/-    1.49  0.050 / 0.040
G07     139.4          27.8                5.6 +/-    0.57      10.2 +/-    0.57  0.040 / 0.030
G11     52.6           29.6                4.3 +/-    1.05       7.6 +/-    1.05  0.030 / 0.030
G13     271.2          36.6                5.6 +/-    1.62       8.6 +/-    1.62  0.030 / 0.030
G15     298.7          16.4                3.8 +/-    1.33       9.3 +/-    1.33  0.100 / 0.100
G17     240.7          71.6                5.9 +/-    0.40       6.2 +/-    0.40  0.060 / 0.090
G19     227.2          46.1                6.3 +/-    2.29       8.4 +/-    2.29  0.140 / 0.230
G28     26.9           58.1                6.0 +/-    1.32       6.9 +/-    1.32  0.120 / 0.240
G30     138.3          54.7                6.4 +/-    0.70       7.6 +/-    0.70  0.050 / 0.090