PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-12:13:10
G07     331.7          58.1                3.3 +/-    1.07       3.8 +/-    1.07  0.030 / 0.050
G08     111.4          49.8                6.7 +/-    0.56       8.5 +/-    0.56  0.030 / 0.040
G09     210.5          79.9                4.6 +/-    0.85       4.7 +/-    0.85  0.150 / 0.370
G11     148.9          10.6               -3.3 +/-   18.01      -9.0 +/-   18.01  0.120 / 0.320
G16     45.2           11.8                2.6 +/-    2.03       7.1 +/-    2.03  0.210 / 0.390
G23     152.2          44.3                6.7 +/-    0.96       9.1 +/-    0.96  0.200 / 0.400
G27     61.8           34.7                4.2 +/-    0.73       6.7 +/-    0.73  0.040 / 0.070
G28     231.8          19.7                5.5 +/-    2.68      12.1 +/-    2.68  0.050 / 0.080
G30     298.7          33.5                3.9 +/-    1.44       6.3 +/-    1.44  0.040 / 0.080