PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-12:58:00
G01     70.0           32.6                7.3 +/-    0.90      12.1 +/-    0.90  0.080 / 0.100
G07     137.5          28.1                8.9 +/-    1.56      16.2 +/-    1.56  0.080 / 0.120
G11     52.6           28.2                6.7 +/-    2.04      12.2 +/-    2.04  0.030 / 0.030
G13     276.5          36.7                9.9 +/-    1.45      15.3 +/-    1.45  0.040 / 0.030
G15     303.9          14.7                2.3 +/-    1.44       5.7 +/-    1.44  0.060 / 0.090
G17     236.2          72.2                9.4 +/-    0.86       9.8 +/-    0.86  0.050 / 0.090
G19     224.7          44.5                9.8 +/-    1.82      13.3 +/-    1.82  0.090 / 0.210
G28     21.0           59.0                6.6 +/-    1.48       7.5 +/-    1.48  0.110 / 0.240
G30     135.1          63.1                8.8 +/-    0.60       9.7 +/-    0.60  0.030 / 0.030