PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/17-12:28:10
G02     222.1          63.1                6.5 +/-    1.06       7.2 +/-    1.06  0.050 / 0.070
G06     47.4           68.8                5.5 +/-    0.55       5.9 +/-    0.55  0.070 / 0.080
G12     320.5          43.0                4.4 +/-    1.31       6.1 +/-    1.31  0.070 / 0.070
G17     63.1           27.0                3.0 +/-    1.21       5.6 +/-    1.21  0.040 / 0.060
G19     41.7           48.5                4.6 +/-    0.28       6.0 +/-    0.28  0.040 / 0.040
G24     253.5          40.1                5.3 +/-    1.36       7.7 +/-    1.36  0.040 / 0.060
G28     125.9          10.5                5.1 +/-    1.70      14.0 +/-    1.70  0.110 / 0.420