PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/07-09:57:40
G02     204.1          33.9                7.3 +/-    1.52      11.9 +/-    1.52  0.070 / 0.080
G06     158.3          69.9                6.3 +/-    0.53       6.6 +/-    0.53  0.070 / 0.080
G12     308.1          16.7                2.3 +/-    3.52       5.6 +/-    3.52  0.180 / 0.320
G17     38.9           46.5                4.4 +/-    0.34       5.8 +/-    0.34  0.110 / 0.170
G19     355.0          66.1                4.2 +/-    0.83       4.6 +/-    0.83  0.040 / 0.030
G24     293.1          41.2                3.9 +/-    1.08       5.6 +/-    1.08  0.030 / 0.040
G28     102.5          32.0                6.9 +/-    0.67      11.6 +/-    0.67  0.040 / 0.040