PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-10:57:50
G01     62.3           31.3                4.4 +/-    0.97       7.6 +/-    0.97  0.070 / 0.110
G07     141.2          23.4                6.3 +/-    1.32      12.8 +/-    1.32  0.090 / 0.120
G11     48.5           24.2                4.0 +/-    2.12       8.0 +/-    2.12  0.040 / 0.040
G13     264.6          36.1                8.6 +/-    1.93      13.3 +/-    1.93  0.040 / 0.040
G15     300.3          14.1                3.0 +/-    1.84       7.5 +/-    1.84  0.060 / 0.100
G17     255.5          76.8                6.8 +/-    0.32       7.0 +/-    0.32  0.120 / 0.100
G18     42.6           13.0                2.7 +/-    1.16       6.9 +/-    1.16  0.040 / 0.050
G19     229.8          44.3                8.2 +/-    1.98      11.1 +/-    1.98  0.040 / 0.050
G28     30.7           57.8                3.3 +/-    0.75       3.8 +/-    0.75  0.060 / 0.070
G30     142.7          56.1                8.8 +/-    0.72      10.4 +/-    0.72  0.070 / 0.080