PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/12-00:42:40
G01     53.7           27.7                5.3 +/-    3.00       9.8 +/-    3.00  0.040 / 0.050
G06     179.5          20.2                8.9 +/-    2.78      19.4 +/-    2.78  0.040 / 0.050
G07     145.0          16.6                8.0 +/-    1.65      19.1 +/-    1.65  0.100 / 0.200
G11     46.7           20.9                6.9 +/-    3.10      14.8 +/-    3.10  0.090 / 0.120
G13     255.7          32.4                5.8 +/-    1.55       9.8 +/-    1.55  0.140 / 0.160
G15     287.0          16.5                8.8 +/-    1.39      21.2 +/-    1.39  0.120 / 0.150
G17     279.9          77.2                7.6 +/-    0.74       7.7 +/-    0.74  0.030 / 0.020
G19     240.8          56.5                7.5 +/-    3.23       8.8 +/-    3.23  0.020 / 0.020
G28     47.1           54.1                6.5 +/-    1.38       7.9 +/-    1.38  0.080 / 0.140
G30     146.8          42.3               10.3 +/-    1.57      14.4 +/-    1.57  0.080 / 0.140