PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/17-06:28:10
G01     118.4          16.7                3.7 +/-    1.85       8.7 +/-    1.85  0.030 / 0.040
G07     78.6           66.5                5.9 +/-    0.72       6.3 +/-    0.72  0.030 / 0.030
G08     46.0           33.7                3.4 +/-    0.89       5.5 +/-    0.89  0.120 / 0.220
G09     175.5          26.1                4.3 +/-    1.59       8.2 +/-    1.59  0.080 / 0.410
G11     111.5          40.7                6.5 +/-    0.95       9.3 +/-    0.95  0.030 / 0.030
G13     317.8          19.6                2.5 +/-    1.56       5.6 +/-    1.56  0.040 / 0.030
G17     200.8          22.0                4.7 +/-    1.89       9.9 +/-    1.89  0.100 / 0.150
G28     279.7          51.2                7.6 +/-    1.82       9.4 +/-    1.82  0.130 / 0.170
G30     338.6          65.6                5.7 +/-    0.33       6.2 +/-    0.33  0.050 / 0.090