PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-09:27:50
G01     66.4           32.3                4.1 +/-    0.68       6.8 +/-    0.68  0.040 / 0.040
G07     139.4          26.5                6.7 +/-    1.53      12.7 +/-    1.53  0.040 / 0.030
G11     50.4           26.9                3.5 +/-    1.34       6.5 +/-    1.34  0.060 / 0.110
G13     269.2          37.2                6.5 +/-    1.11       9.9 +/-    1.11  0.050 / 0.120
G15     302.7          14.0                1.8 +/-    1.90       4.6 +/-    1.90  0.060 / 0.080
G17     243.4          74.5                7.0 +/-    0.75       7.2 +/-    0.75  0.060 / 0.080
G18     44.8           14.9                2.0 +/-    1.22       5.0 +/-    1.22  0.120 / 0.350
G19     226.6          41.5                6.5 +/-    2.38       9.2 +/-    2.38  0.130 / 0.340
G28     23.8           58.9                5.2 +/-    0.64       6.0 +/-    0.64  0.080 / 0.120
G30     139.5          60.0                7.2 +/-    0.62       8.2 +/-    0.62  0.100 / 0.120