PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-12:13:00
G01     38.1           10.4                4.5 +/-    3.29      12.3 +/-    3.29  0.050 / 0.080
G02     199.8          14.8                4.3 +/-    1.84      10.8 +/-    1.84  0.040 / 0.080
G06     174.8          46.0                6.9 +/-    1.73       9.2 +/-    1.73  0.150 / 0.180
G13     233.3          17.2                5.1 +/-    1.85      12.0 +/-    1.85  0.160 / 0.160
G17     18.5           62.7                3.5 +/-    0.49       3.9 +/-    0.49  0.240 / 0.360
G19     309.0          72.1                4.2 +/-    0.55       4.4 +/-    0.55  0.130 / 0.370
G24     314.4          23.8                4.5 +/-    3.40       9.0 +/-    3.40  0.040 / 0.060
G28     81.8           42.5                3.8 +/-    0.60       5.4 +/-    0.60  0.040 / 0.050
G30     156.4          20.9                5.9 +/-    2.33      12.6 +/-    2.33  0.020 / 0.040