PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-06:58:00
G01     114.3          21.1                4.8 +/-    0.99      10.2 +/-    0.99  0.040 / 0.030
G07     94.7           62.3                4.0 +/-    0.51       4.5 +/-    0.51  0.030 / 0.030
G08     42.6           24.5                1.5 +/-    1.92       3.0 +/-    1.92  0.030 / 0.040
G09     173.3          17.0                4.8 +/-    1.02      11.3 +/-    1.02  0.030 / 0.040
G11     97.4           41.7                5.7 +/-    0.70       8.0 +/-    0.70  0.100 / 0.160
G13     314.7          23.9                2.5 +/-    1.29       5.1 +/-    1.29  0.100 / 0.160
G17     202.1          32.3                3.9 +/-    1.83       6.6 +/-    1.83  0.080 / 0.230
G18     86.2           22.3                3.5 +/-    1.99       7.4 +/-    1.99  0.080 / 0.220
G28     300.2          58.5                2.4 +/-    0.43       2.8 +/-    0.43  0.090 / 0.260
G30     352.6          72.0                4.4 +/-    0.89       4.6 +/-    0.89  0.090 / 0.280