PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-01:12:40
G01     66.8           32.3                5.0 +/-    1.62       8.4 +/-    1.62  0.040 / 0.050
G07     139.4          28.1                7.0 +/-    1.28      12.8 +/-    1.28  0.040 / 0.050
G11     53.2           30.8                4.2 +/-    1.18       7.2 +/-    1.18  0.050 / 0.060
G13     270.9          36.7                4.4 +/-    2.38       6.7 +/-    2.38  0.050 / 0.050
G15     298.8          16.3                4.5 +/-    2.94      11.0 +/-    2.94  0.030 / 0.030
G17     239.4          70.0                5.6 +/-    0.59       5.9 +/-    0.59  0.030 / 0.030
G19     227.1          45.5                5.5 +/-    1.97       7.4 +/-    1.97  0.060 / 0.090
G28     26.8           58.1                7.2 +/-    0.91       8.3 +/-    0.91  0.050 / 0.090
G30     138.4          54.2                6.7 +/-    0.45       8.1 +/-    0.45  0.070 / 0.080