PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-07:27:50
G01     274.5          41.3                5.9 +/-    2.31       8.4 +/-    2.31  0.180 / 0.360
G03     315.3          26.9                3.6 +/-    2.00       6.8 +/-    2.00  0.180 / 0.350
G10     128.2          18.9                5.7 +/-    2.74      12.9 +/-    2.74  0.050 / 0.050
G11     252.8          21.3                6.8 +/-    1.44      14.5 +/-    1.44  0.050 / 0.040
G14     36.8           53.7                5.6 +/-    1.23       6.7 +/-    1.23  0.130 / 0.170
G18     237.3          40.9                6.1 +/-    1.64       8.7 +/-    1.64  0.100 / 0.130
G22     314.6          50.8                5.2 +/-    0.72       6.5 +/-    0.72  0.050 / 0.040
G25     54.7           17.3                1.7 +/-    3.95       4.1 +/-    3.95  0.050 / 0.040
G31     58.9           73.7                6.0 +/-    0.45       6.3 +/-    0.45  0.050 / 0.070
G32     63.0           32.5                2.4 +/-    1.86       4.0 +/-    1.86  0.050 / 0.060