PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-09:28:10
G02     205.8          39.8                7.9 +/-    2.07      11.5 +/-    2.07  0.050 / 0.080
G06     147.7          75.0                8.1 +/-    1.13       8.4 +/-    1.13  0.050 / 0.080
G12     310.8          20.6                6.0 +/-    2.04      12.9 +/-    2.04  0.150 / 0.220
G17     43.6           42.5                4.6 +/-    0.27       6.5 +/-    0.27  0.130 / 0.230
G19     7.2            63.0                3.8 +/-    0.70       4.2 +/-    0.70  0.030 / 0.030
G24     285.9          43.1                3.5 +/-    1.01       4.9 +/-    1.01  0.030 / 0.020
G28     107.5          28.5                5.8 +/-    0.72      10.5 +/-    0.72  0.040 / 0.040