PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-07:27:50
G01     64.9           31.9                3.4 +/-    0.55       5.8 +/-    0.55  0.040 / 0.040
G07     140.0          24.8                4.8 +/-    1.64       9.4 +/-    1.64  0.050 / 0.050
G11     49.5           25.8                3.9 +/-    0.80       7.6 +/-    0.80  0.050 / 0.140
G13     267.5          36.9                6.2 +/-    1.32       9.4 +/-    1.32  0.050 / 0.150
G15     300.4          14.8                0.4 +/-    2.54       1.0 +/-    2.54  0.050 / 0.070
G17     248.1          76.0                5.8 +/-    0.69       6.0 +/-    0.69  0.050 / 0.090
G18     43.5           13.7                1.0 +/-    1.11       2.5 +/-    1.11  0.080 / 0.120
G19     227.7          43.6                7.6 +/-    1.50      10.5 +/-    1.50  0.090 / 0.120
G28     25.4           58.7                3.0 +/-    0.66       3.5 +/-    0.66  0.080 / 0.220
G30     140.7          58.6                5.3 +/-    1.05       6.1 +/-    1.05  0.100 / 0.180