PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-07:43:00
G01     117.7          18.9                6.5 +/-    1.52      14.7 +/-    1.52  0.030 / 0.030
G07     86.5           64.7                7.0 +/-    0.59       7.6 +/-    0.59  0.030 / 0.030
G08     43.6           27.9                2.9 +/-    0.75       5.4 +/-    0.75  0.040 / 0.040
G09     173.3          19.9                7.5 +/-    1.60      16.6 +/-    1.60  0.030 / 0.040
G11     102.6          40.7                8.7 +/-    0.35      12.5 +/-    0.35  0.150 / 0.310
G13     316.7          21.1                1.6 +/-    1.74       3.4 +/-    1.74  0.170 / 0.300
G17     201.2          28.3                5.7 +/-    1.36      10.3 +/-    1.36  0.100 / 0.250
G18     90.5           21.2                5.9 +/-    1.23      12.5 +/-    1.23  0.090 / 0.280
G28     293.7          57.3                5.8 +/-    0.67       6.7 +/-    0.67  0.120 / 0.200
G30     345.6          68.9                4.0 +/-    1.04       4.3 +/-    1.04  0.120 / 0.210