PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-19:58:10
G01     64.1           31.8                9.7 +/-    1.42      16.3 +/-    1.42  0.100 / 0.180
G07     140.6          26.1               13.5 +/-    0.89      25.7 +/-    0.89  0.090 / 0.180
G11     50.6           27.3                8.4 +/-    1.96      15.5 +/-    1.96  0.040 / 0.040
G13     267.2          36.3               14.0 +/-    1.20      21.6 +/-    1.20  0.040 / 0.040
G15     297.7          16.0               10.1 +/-    1.05      24.4 +/-    1.05  0.070 / 0.110
G17     243.4          70.5               12.6 +/-    0.53      13.3 +/-    0.53  0.070 / 0.140
G18     45.0           15.4                9.3 +/-    1.66      22.8 +/-    1.66  0.040 / 0.040
G19     229.0          46.0               13.3 +/-    2.18      17.6 +/-    2.18  0.050 / 0.040
G28     30.1           57.7               13.1 +/-    0.95      15.2 +/-    0.95  0.150 / 0.240
G30     140.8          55.0               13.3 +/-    0.40      15.9 +/-    0.40  0.090 / 0.430