PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-08:58:10
G01     53.2           27.3                2.1 +/-    1.50       3.9 +/-    1.50  0.050 / 0.060
G06     180.8          19.1                4.6 +/-    1.00      10.3 +/-    1.00  0.050 / 0.070
G07     145.0          14.8                5.3 +/-    1.15      13.2 +/-    1.15  0.160 / 0.170
G11     45.6           17.4                1.4 +/-    0.92       3.3 +/-    0.92  0.140 / 0.240
G13     256.3          32.1                5.5 +/-    1.27       9.1 +/-    1.27  0.080 / 0.280
G15     287.1          16.4                2.7 +/-    1.68       6.6 +/-    1.68  0.100 / 0.320
G17     303.9          79.5                4.8 +/-    0.74       4.9 +/-    0.74  0.030 / 0.030
G19     242.3          58.6                6.3 +/-    0.56       7.2 +/-    0.56  0.020 / 0.030
G28     47.9           53.9                3.5 +/-    0.84       4.2 +/-    0.84  0.100 / 0.360
G30     147.6          44.8                6.1 +/-    0.56       8.2 +/-    0.56  0.110 / 0.390