PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-22:42:50
G01     66.0           32.2               10.3 +/-    0.52      17.2 +/-    0.52  0.040 / 0.080
G07     139.7          27.7               14.1 +/-    1.45      25.9 +/-    1.45  0.050 / 0.080
G11     52.2           29.5                9.7 +/-    1.17      17.1 +/-    1.17  0.030 / 0.050
G13     269.8          36.7               14.0 +/-    1.22      21.6 +/-    1.22  0.040 / 0.060
G15     298.5          16.2                9.6 +/-    2.29      23.2 +/-    2.29  0.060 / 0.130
G17     239.2          68.4               14.4 +/-    0.97      15.3 +/-    0.97  0.050 / 0.170
G18     46.4           16.4                8.5 +/-    1.51      20.4 +/-    1.51  0.030 / 0.030
G19     227.6          45.3               15.0 +/-    1.33      20.1 +/-    1.33  0.040 / 0.050
G28     27.6           58.0               10.9 +/-    0.60      12.6 +/-    0.60  0.100 / 0.360
G30     139.1          55.2               13.7 +/-    0.80      16.3 +/-    0.80  0.110 / 0.380