PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-04:58:00
G10     272.6          41.2                9.0 +/-    1.08      12.9 +/-    1.08  0.090 / 0.530
G13     39.9           14.5                4.5 +/-    2.44      11.3 +/-    2.44  0.080 / 0.570
G15     54.6           45.1                5.1 +/-    0.78       6.8 +/-    0.78  0.040 / 0.050
G16     273.5          10.2                9.0 +/-    2.70      24.9 +/-    2.70  0.040 / 0.040
G20     343.0          67.6                4.9 +/-    0.71       5.3 +/-    0.71  0.080 / 0.130
G21     15.2           74.6                7.3 +/-    0.87       7.6 +/-    0.87  0.070 / 0.130
G24     115.6          17.2                5.8 +/-    1.24      13.7 +/-    1.24  0.110 / 0.280
G27     315.9          23.0                4.8 +/-    1.90       9.7 +/-    1.90  0.100 / 0.290
G29     168.7          26.5                8.6 +/-    1.14      16.2 +/-    1.14  0.140 / 0.330
G32     204.7          15.4               10.5 +/-    3.20      25.8 +/-    3.20  0.110 / 0.270