PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-14:28:00
G07     316.1          50.8               10.5 +/-    1.37      13.2 +/-    1.37  0.040 / 0.060
G08     120.0          46.3               13.0 +/-    1.02      17.1 +/-    1.02  0.040 / 0.080
G09     243.3          83.2               10.0 +/-    0.96      10.0 +/-    0.96  0.040 / 0.060
G16     43.6           15.2                7.1 +/-    1.66      17.7 +/-    1.66  0.040 / 0.060
G23     149.1          51.4               11.5 +/-    1.36      14.3 +/-    1.36  0.040 / 0.070
G27     68.4           36.3                8.9 +/-    0.47      13.8 +/-    0.47  0.040 / 0.060
G28     228.8          19.6               10.3 +/-    3.81      22.8 +/-    3.81  0.080 / 0.150
G30     292.4          27.3                8.1 +/-    3.20      15.0 +/-    3.20  0.070 / 0.120