PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/17-04:42:50
G01     46.7           22.7                3.5 +/-    2.13       7.2 +/-    2.13  0.050 / 0.060
G06     179.6          26.7                6.3 +/-    1.05      11.8 +/-    1.05  0.040 / 0.050
G11     44.2           12.6                2.2 +/-    1.96       5.8 +/-    1.96  0.140 / 0.420
G13     247.1          27.8                5.5 +/-    2.29      10.1 +/-    2.29  0.230 / 0.260
G15     278.5          15.2                1.7 +/-    3.25       4.3 +/-    3.25  0.200 / 0.250
G17     334.5          76.7                5.7 +/-    0.49       5.8 +/-    0.49  0.150 / 0.210
G19     256.3          64.4                6.5 +/-    0.69       7.1 +/-    0.69  0.030 / 0.020
G24     318.9          10.9              -13.9 +/-   20.02     -38.1 +/-   20.02  0.020 / 0.020
G28     60.1           50.5                3.5 +/-    0.39       4.4 +/-    0.39  0.120 / 0.200
G30     150.7          33.8                6.5 +/-    1.48      10.6 +/-    1.48  0.120 / 0.280