PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-09:57:40
G01     114.2          21.2                5.8 +/-    2.72      12.4 +/-    2.72  0.140 / 0.280
G07     94.9           61.7                5.4 +/-    0.94       6.0 +/-    0.94  0.200 / 0.170
G08     42.9           25.3                5.0 +/-    3.32       9.7 +/-    3.32  0.040 / 0.030
G09     175.1          19.5                7.5 +/-    6.14      16.8 +/-    6.14  0.030 / 0.030
G11     97.9           40.4                8.8 +/-    1.22      12.8 +/-    1.22  0.030 / 0.030
G13     316.0          21.6                3.2 +/-    2.33       6.7 +/-    2.33  0.030 / 0.020
G17     202.5          32.3                8.6 +/-    1.36      14.4 +/-    1.36  0.140 / 0.120
G28     303.7          59.3                2.8 +/-    1.62       3.2 +/-    1.62  0.120 / 0.090
G30     355.0          72.0                5.5 +/-    1.50       5.7 +/-    1.50  0.100 / 0.080