PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-07:42:40
G05     52.0           9.5                 1.6 +/-    2.95       4.4 +/-    2.95  0.080 / 0.360
G10     241.2          17.6                6.0 +/-    1.00      14.0 +/-    1.00  0.070 / 0.350
G13     66.9           35.5                4.9 +/-    1.10       7.7 +/-    1.10  0.110 / 0.300
G15     109.1          55.9                5.7 +/-    0.67       6.7 +/-    0.67  0.130 / 0.290
G16     307.6          14.3                2.5 +/-    2.23       6.3 +/-    2.23  0.040 / 0.060
G20     353.8          74.3                3.4 +/-    0.70       3.5 +/-    0.70  0.030 / 0.050
G21     321.0          52.5                2.8 +/-    0.67       3.5 +/-    0.67  0.030 / 0.040
G26     278.9          19.5                4.4 +/-    2.03       9.9 +/-    2.03  0.030 / 0.040
G29     160.2          63.4                5.1 +/-    0.28       5.7 +/-    0.28  0.030 / 0.030