PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/25-18:13:10
G10     260.4          34.4                9.0 +/-    1.55      14.4 +/-    1.55  0.120 / 0.240
G13     45.3           22.7                7.7 +/-    1.15      15.8 +/-    1.15  0.110 / 0.280
G15     71.1           55.9                9.0 +/-    0.55      10.6 +/-    0.55  0.070 / 0.060
G16     285.3          14.0                9.3 +/-    0.87      23.7 +/-    0.87  0.060 / 0.040
G20     286.0          57.2                9.5 +/-    1.18      11.1 +/-    1.18  0.150 / 0.310
G21     352.2          68.2                9.2 +/-    0.67       9.8 +/-    0.67  0.170 / 0.290
G24     122.4          10.9                1.8 +/-   39.74       4.8 +/-   39.74  0.070 / 0.230
G26     259.0          10.9                9.1 +/-    1.95      24.9 +/-    1.95  0.070 / 0.200
G27     321.6          12.3                8.6 +/-    5.28      22.8 +/-    5.28  0.170 / 0.380
G29     166.7          38.0               11.7 +/-    1.27      17.6 +/-    1.27  0.120 / 0.290