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                4.8 +/-    0.82       8.0 +/-    0.82  0.030 / 0.030
G07     139.4          28.1                7.4 +/-    1.80      13.5 +/-    1.80  0.020 / 0.030
G11     53.2           30.8                4.9 +/-    1.08       8.5 +/-    1.08  0.030 / 0.050
G13     270.9          36.7                5.3 +/-    1.29       8.2 +/-    1.29  0.040 / 0.050
G15     298.8          16.3                5.1 +/-    1.67      12.3 +/-    1.67  0.040 / 0.060
G17     239.4          70.0                6.6 +/-    1.07       7.0 +/-    1.07  0.050 / 0.080
G19     227.1          45.5                7.0 +/-    1.05       9.3 +/-    1.05  0.060 / 0.130
G28     26.8           58.1                4.5 +/-    0.55       5.2 +/-    0.55  0.050 / 0.130
G30     138.4          54.2                6.7 +/-    0.97       8.1 +/-    0.97  0.050 / 0.110