PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-09:58:00
G01     65.7           32.1                4.0 +/-    0.80       6.7 +/-    0.80  0.040 / 0.040
G07     139.7          26.1                6.6 +/-    0.76      12.6 +/-    0.76  0.040 / 0.040
G11     50.1           26.5                3.3 +/-    1.70       6.2 +/-    1.70  0.050 / 0.100
G13     268.4          37.0                6.0 +/-    1.04       9.1 +/-    1.04  0.040 / 0.090
G15     302.5          13.9                2.4 +/-    1.76       6.1 +/-    1.76  0.100 / 0.140
G17     245.1          74.9                6.4 +/-    0.84       6.6 +/-    0.84  0.080 / 0.140
G18     44.5           14.7                1.3 +/-    1.71       3.2 +/-    1.71  0.050 / 0.080
G19     227.1          41.9                6.6 +/-    1.43       9.3 +/-    1.43  0.050 / 0.070
G28     25.0           58.7                4.0 +/-    0.98       4.6 +/-    0.98  0.050 / 0.080
G30     140.1          59.3                6.8 +/-    0.59       7.7 +/-    0.59  0.050 / 0.070