PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-04:57:40
G10     276.9          43.4                7.3 +/-    1.43      10.1 +/-    1.43  0.050 / 0.030
G13     38.7           11.5                4.5 +/-    3.03      12.1 +/-    3.03  0.060 / 0.030
G15     51.9           42.1                5.8 +/-    1.09       8.1 +/-    1.09  0.170 / 0.110
G20     349.4          67.0                5.1 +/-    0.39       5.5 +/-    0.39  0.100 / 0.130
G21     28.3           76.3                6.4 +/-    0.65       6.6 +/-    0.65  0.090 / 0.170
G24     112.3          19.2                4.0 +/-    1.09       9.0 +/-    1.09  0.090 / 0.170
G27     313.6          25.6                5.9 +/-    2.38      11.5 +/-    2.38  0.490 / 0.450
G29     168.9          22.8                4.7 +/-    1.70       9.8 +/-    1.70  0.500 / 0.520
G32     205.4          18.9                6.0 +/-    3.41      13.6 +/-    3.41  0.040 / 0.050