PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-06:58:10
G01     121.9          15.6                7.1 +/-    1.35      17.3 +/-    1.35  0.030 / 0.030
G07     74.4           67.1                6.3 +/-    0.67       6.8 +/-    0.67  0.040 / 0.040
G08     45.6           32.1                4.3 +/-    0.68       7.2 +/-    0.68  0.040 / 0.040
G09     174.1          25.2                7.8 +/-    2.34      15.1 +/-    2.34  0.020 / 0.040
G11     109.0          38.8                8.2 +/-    1.01      12.1 +/-    1.01  0.110 / 0.290
G13     318.9          17.2                2.1 +/-    1.70       5.0 +/-    1.70  0.080 / 0.230
G17     200.0          23.2                6.3 +/-    3.82      12.9 +/-    3.82  0.090 / 0.220
G18     95.5           19.4                7.4 +/-    1.26      16.5 +/-    1.26  0.080 / 0.210
G28     284.8          55.1                7.1 +/-    0.79       8.5 +/-    0.79  0.120 / 0.200
G30     338.2          64.6                4.9 +/-    0.51       5.4 +/-    0.51  0.110 / 0.210