PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-12:43:00
G01     118.9          18.0                6.4 +/-    0.84      14.9 +/-    0.84  0.030 / 0.060
G07     81.2           66.4                4.3 +/-    0.30       4.6 +/-    0.30  0.030 / 0.040
G08     44.5           30.1                3.4 +/-    0.77       5.9 +/-    0.77  0.120 / 0.270
G09     175.5          23.9                5.8 +/-    1.82      11.6 +/-    1.82  0.120 / 0.310
G11     105.3          40.0                5.3 +/-    0.76       7.7 +/-    0.76  0.050 / 0.080
G13     317.5          19.8                2.7 +/-    3.91       5.9 +/-    3.91  0.040 / 0.080
G17     201.4          25.4                4.5 +/-    2.35       8.7 +/-    2.35  0.040 / 0.050
G18     93.5           20.9                6.0 +/-    0.89      13.0 +/-    0.89  0.040 / 0.060
G28     292.8          57.3                3.9 +/-    1.46       4.5 +/-    1.46  0.020 / 0.050
G30     344.4          67.9                1.5 +/-    0.96       1.6 +/-    0.96  0.020 / 0.050