PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-12:28:10
G02     216.8          57.3                5.1 +/-    1.14       5.9 +/-    1.14  0.050 / 0.100
G06     57.1           73.9                5.8 +/-    0.89       6.0 +/-    0.89  0.070 / 0.080
G12     319.0          37.9                3.6 +/-    1.06       5.4 +/-    1.06  0.050 / 0.070
G17     58.6           30.5                2.5 +/-    1.27       4.3 +/-    1.27  0.040 / 0.090
G19     34.6           52.1                3.8 +/-    0.80       4.7 +/-    0.80  0.030 / 0.030
G24     261.0          42.2                5.3 +/-    2.10       7.5 +/-    2.10  0.030 / 0.040
G28     122.3          14.7                4.9 +/-    2.20      12.3 +/-    2.20  0.040 / 0.060