PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-09:42:50
G02     86.4           10.1                6.1 +/-    8.59      17.0 +/-    8.59  0.100 / 0.110
G05     45.2           29.2                2.9 +/-    1.78       5.2 +/-    1.78  0.160 / 0.150
G13     97.2           34.3                6.6 +/-    1.42      10.6 +/-    1.42  0.190 / 0.110
G15     140.9          40.5                6.1 +/-    0.88       8.9 +/-    0.88  0.110 / 0.150
G20     308.4          83.3                3.3 +/-    0.66       3.3 +/-    0.66  0.050 / 0.040
G21     300.1          38.9                2.7 +/-    2.93       4.1 +/-    2.93  0.040 / 0.030
G25     208.5          24.2                3.8 +/-    0.99       7.5 +/-    0.99  0.380 / 0.430
G26     303.5          19.0                1.8 +/-    1.98       4.2 +/-    1.98  0.380 / 0.380
G29     84.6           86.7                5.3 +/-    0.39       5.3 +/-    0.39  0.130 / 0.190