PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-06:57:50
G01     116.0          20.0                5.3 +/-    1.55      11.6 +/-    1.55  0.120 / 0.240
G07     90.9           63.5                4.8 +/-    0.92       5.3 +/-    0.92  0.110 / 0.220
G08     43.0           26.1                2.2 +/-    2.41       4.2 +/-    2.41  0.090 / 0.150
G09     173.5          18.7                4.7 +/-    1.44      10.7 +/-    1.44  0.060 / 0.250
G11     99.9           41.2                6.1 +/-    0.60       8.7 +/-    0.60  0.030 / 0.040
G13     315.7          22.5                2.5 +/-    1.94       5.1 +/-    1.94  0.030 / 0.040
G17     201.6          30.4                4.0 +/-    0.84       6.9 +/-    0.84  0.030 / 0.030
G18     88.2           21.8                4.3 +/-    1.22       9.0 +/-    1.22  0.030 / 0.030
G28     296.8          57.9                4.3 +/-    0.86       5.0 +/-    0.86  0.130 / 0.180
G30     348.9          70.4                4.8 +/-    0.70       5.1 +/-    0.70  0.120 / 0.220