PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-09:42:50
G01     39.2           12.9                1.2 +/-    1.00       3.2 +/-    1.00  0.040 / 0.060
G02     199.2          13.0                4.0 +/-    1.55      10.5 +/-    1.55  0.050 / 0.070
G06     177.0          41.3                9.1 +/-    1.15      12.9 +/-    1.15  0.030 / 0.030
G13     235.5          19.2                3.8 +/-    1.14       8.6 +/-    1.14  0.050 / 0.030
G15     266.8          10.9                2.1 +/-    2.49       5.7 +/-    2.49  0.110 / 0.190
G17     13.2           65.7                3.9 +/-    0.61       4.2 +/-    0.61  0.110 / 0.180
G19     296.8          71.7                4.2 +/-    1.32       4.4 +/-    1.32  0.100 / 0.370
G24     315.6          21.5                2.0 +/-    2.95       4.2 +/-    2.95  0.060 / 0.310
G28     78.1           44.1                4.4 +/-    0.62       5.9 +/-    0.62  0.080 / 0.110
G30     155.5          22.9                6.6 +/-    1.37      13.6 +/-    1.37  0.100 / 0.130