PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/07-09:42:50
G02     202.3          27.0                5.1 +/-    0.73       9.5 +/-    0.73  0.060 / 0.080
G06     166.1          62.7                7.6 +/-    1.16       8.4 +/-    1.16  0.070 / 0.080
G12     304.3          11.7                0.8 +/-    4.40       2.2 +/-    4.40  0.130 / 0.290
G17     32.9           51.6                4.3 +/-    0.54       5.3 +/-    0.54  0.120 / 0.280
G19     337.1          68.9                6.5 +/-    0.71       6.9 +/-    0.71  0.030 / 0.030
G24     300.7          37.9                4.4 +/-    1.03       6.7 +/-    1.03  0.030 / 0.030
G28     95.6           36.3                5.3 +/-    0.53       8.2 +/-    0.53  0.030 / 0.040