PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-11:58:10
G01     64.6           31.9                3.7 +/-    0.61       6.2 +/-    0.61  0.040 / 0.090
G07     140.3          25.5                7.4 +/-    0.69      14.3 +/-    0.69  0.050 / 0.120
G11     49.7           25.9                3.0 +/-    1.99       5.7 +/-    1.99  0.040 / 0.050
G13     267.2          36.7                6.9 +/-    1.01      10.6 +/-    1.01  0.040 / 0.050
G15     302.6          13.5                1.4 +/-    1.37       3.7 +/-    1.37  0.060 / 0.080
G17     247.5          75.0                7.2 +/-    0.99       7.4 +/-    0.99  0.050 / 0.080
G18     44.2           14.5                2.3 +/-    1.20       5.7 +/-    1.20  0.110 / 0.280
G19     228.0          42.3                7.5 +/-    0.87      10.5 +/-    0.87  0.120 / 0.240
G28     27.5           58.3                4.3 +/-    0.78       4.9 +/-    0.78  0.080 / 0.130
G30     140.9          58.1                7.7 +/-    0.96       8.9 +/-    0.96  0.080 / 0.110