PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-08:12:50
G01     118.1          17.1                4.2 +/-    2.03       9.9 +/-    2.03  0.030 / 0.040
G07     81.7           65.5                5.7 +/-    0.46       6.2 +/-    0.46  0.030 / 0.040
G08     46.0           34.3                2.7 +/-    0.43       4.4 +/-    0.43  0.030 / 0.040
G09     176.1          26.2                6.5 +/-    1.15      12.4 +/-    1.15  0.030 / 0.040
G11     109.7          40.9                7.1 +/-    1.23      10.2 +/-    1.23  0.050 / 0.110
G13     317.5          20.1                2.3 +/-    1.64       5.0 +/-    1.64  0.060 / 0.120
G17     201.3          21.8                5.6 +/-    0.56      11.8 +/-    0.56  0.100 / 0.340
G18     94.2           20.6                5.8 +/-    0.66      12.5 +/-    0.66  0.100 / 0.470
G28     281.4          52.0                7.0 +/-    1.30       8.7 +/-    1.30  0.060 / 0.120
G30     341.3          66.9                3.6 +/-    0.62       3.9 +/-    0.62  0.060 / 0.150