PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-04:43:10
G07     38.4           69.2                5.0 +/-    0.56       5.3 +/-    0.56  0.060 / 0.050
G08     54.2           42.0                4.4 +/-    0.77       6.2 +/-    0.77  0.040 / 0.060
G09     175.9          39.9                8.4 +/-    0.99      12.3 +/-    0.99  0.040 / 0.090
G11     122.8          32.0                6.7 +/-    1.03      11.2 +/-    1.03  0.050 / 0.090
G17     198.3          10.9               -4.6 +/-   18.05     -12.6 +/-   18.05  0.070 / 0.200
G23     161.4          15.5                6.1 +/-    1.10      14.9 +/-    1.10  0.080 / 0.160
G27     39.1           14.2                1.9 +/-    2.02       4.8 +/-    2.02  0.030 / 0.040
G28     265.1          47.9                6.1 +/-    0.97       7.9 +/-    0.97  0.030 / 0.040
G30     324.2          54.0                4.9 +/-    0.84       6.0 +/-    0.84  0.170 / 0.280