PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-10:27:40
G01     67.2           32.4                4.3 +/-    1.61       7.1 +/-    1.61  0.040 / 0.040
G07     139.0          27.4                5.6 +/-    1.12      10.4 +/-    1.12  0.040 / 0.030
G11     50.8           27.5                2.1 +/-    1.36       3.8 +/-    1.36  0.070 / 0.080
G13     270.1          37.3                6.3 +/-    1.20       9.6 +/-    1.20  0.060 / 0.070
G15     304.0          13.5                2.0 +/-    1.84       5.1 +/-    1.84  0.050 / 0.130
G17     241.3          73.7                5.4 +/-    0.76       5.6 +/-    0.76  0.060 / 0.120
G18     45.5           15.5                2.2 +/-    1.21       5.5 +/-    1.21  0.130 / 0.400
G19     226.1          40.5                7.0 +/-    1.05      10.2 +/-    1.05  0.110 / 0.410
G28     23.0           59.0                4.9 +/-    0.32       5.6 +/-    0.32  0.070 / 0.090
G30     138.9          60.6                7.4 +/-    0.59       8.3 +/-    0.59  0.070 / 0.140