PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-08:58:00
G01     121.9          15.7                5.5 +/-    1.04      13.4 +/-    1.04  0.030 / 0.030
G07     73.7           67.4                6.0 +/-    0.39       6.4 +/-    0.39  0.030 / 0.030
G08     45.7           32.4                2.7 +/-    1.49       4.5 +/-    1.49  0.030 / 0.030
G09     173.8          24.6                8.5 +/-    1.80      16.7 +/-    1.80  0.030 / 0.030
G11     109.2          38.8                7.9 +/-    0.43      11.7 +/-    0.43  0.130 / 0.270
G13     318.9          17.2                3.7 +/-    1.88       8.8 +/-    1.88  0.150 / 0.230
G17     200.3          22.9                6.5 +/-    3.40      13.4 +/-    3.40  0.070 / 0.060
G18     96.0           19.5                5.2 +/-    1.61      11.5 +/-    1.61  0.070 / 0.060
G28     285.5          55.4                5.9 +/-    2.44       7.0 +/-    2.44  0.170 / 0.320
G30     338.5          64.7                4.5 +/-    0.38       5.0 +/-    0.38  0.210 / 0.320