PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-11:27:50
G01     115.9          19.0                5.3 +/-    1.30      12.0 +/-    1.30  0.050 / 0.070
G07     90.4           62.7                5.7 +/-    0.69       6.4 +/-    0.69  0.040 / 0.080
G08     45.2           33.2                2.4 +/-    0.57       3.9 +/-    0.57  0.090 / 0.280
G09     176.7          24.4                4.2 +/-    1.46       8.3 +/-    1.46  0.130 / 0.210
G11     104.3          41.8                6.2 +/-    0.40       8.7 +/-    0.40  0.030 / 0.050
G13     316.1          22.3                0.1 +/-    1.86       0.1 +/-    1.86  0.030 / 0.040
G17     202.7          22.8                3.5 +/-    1.72       7.1 +/-    1.72  0.060 / 0.200
G18     90.9           21.6                4.2 +/-    0.83       9.0 +/-    0.83  0.060 / 0.210
G28     287.1          54.0                5.1 +/-    0.74       6.1 +/-    0.74  0.050 / 0.080
G30     350.8          70.8                3.7 +/-    0.69       3.8 +/-    0.69  0.050 / 0.080