PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-00:13:00
G01     124.0          14.2                9.7 +/-    1.98      24.5 +/-    1.98  0.080 / 0.070
G07     63.8           68.8                7.4 +/-    0.27       7.9 +/-    0.27  0.080 / 0.080
G08     48.8           38.3                6.1 +/-    0.57       9.1 +/-    0.57  0.050 / 0.050
G09     178.6          33.0                9.2 +/-    0.82      15.1 +/-    0.82  0.070 / 0.050
G11     117.1          36.8                8.2 +/-    0.35      12.6 +/-    0.35  0.250 / 0.270
G13     320.4          14.0                5.7 +/-    1.70      14.7 +/-    1.70  0.120 / 0.290
G17     201.0          17.6                9.1 +/-    1.69      21.2 +/-    1.69  0.170 / 0.240
G28     283.6          55.3                8.7 +/-    2.11      10.3 +/-    2.11  0.140 / 0.230
G30     346.4          67.0                6.6 +/-    0.85       7.1 +/-    0.85  0.020 / 0.030