PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-03:58:10
G01     120.2          16.8                6.8 +/-    0.96      16.2 +/-    0.96  0.030 / 0.040
G07     80.9           65.5                5.6 +/-    0.39       6.0 +/-    0.39  0.040 / 0.040
G08     44.6           30.2                3.0 +/-    0.52       5.3 +/-    0.52  0.030 / 0.030
G09     175.4          25.3                5.0 +/-    1.09       9.8 +/-    1.09  0.030 / 0.040
G11     106.2          39.6                4.8 +/-    1.06       7.1 +/-    1.06  0.050 / 0.170
G13     318.1          18.8                3.0 +/-    2.45       6.9 +/-    2.45  0.080 / 0.170
G17     200.2          25.6                5.9 +/-    1.40      11.4 +/-    1.40  0.110 / 0.250
G28     287.1          55.5                4.4 +/-    0.78       5.2 +/-    0.78  0.110 / 0.230
G30     341.2          66.4                2.0 +/-    0.46       2.2 +/-    0.46  0.060 / 0.060