PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-03:57:50
G08     317.5          13.8                7.4 +/-    1.80      19.0 +/-    1.80  0.040 / 0.050
G10     315.0          56.7                7.5 +/-    0.88       8.8 +/-    0.88  0.030 / 0.050
G14     214.2          19.1               10.0 +/-    2.11      22.4 +/-    2.11  0.060 / 0.060
G15     45.7           19.8                3.4 +/-    0.56       7.6 +/-    0.56  0.060 / 0.080
G20     9.2            64.6                8.4 +/-    0.42       9.1 +/-    0.42  0.180 / 0.530
G21     121.9          66.6               10.1 +/-    0.64      10.9 +/-    0.64  0.170 / 0.400
G24     84.0           29.3                4.4 +/-    0.63       7.8 +/-    0.63  0.040 / 0.040
G27     287.1          37.4                7.7 +/-    1.40      11.7 +/-    1.40  0.030 / 0.040
G32     216.1          44.9               11.6 +/-    0.95      15.7 +/-    0.95  0.090 / 0.240