PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-06:58:10
G01     52.2           26.7                2.0 +/-    0.77       3.8 +/-    0.77  0.040 / 0.060
G06     181.6          18.9                4.5 +/-    2.49      10.3 +/-    2.49  0.040 / 0.050
G07     145.4          14.2                5.0 +/-    0.98      12.7 +/-    0.98  0.150 / 0.230
G11     45.5           17.2                0.9 +/-    1.28       2.0 +/-    1.28  0.130 / 0.300
G13     254.6          31.5                7.7 +/-    1.83      13.0 +/-    1.83  0.020 / 0.030
G15     285.5          16.4                5.3 +/-    1.44      12.8 +/-    1.44  0.020 / 0.030
G17     306.9          79.2                4.3 +/-    1.06       4.4 +/-    1.06  0.130 / 0.330
G19     244.0          59.4                6.1 +/-    0.65       6.9 +/-    0.65  0.130 / 0.390
G28     49.9           53.4                2.1 +/-    0.60       2.5 +/-    0.60  0.150 / 0.250
G30     148.0          42.4                6.2 +/-    0.74       8.6 +/-    0.74  0.140 / 0.340