PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-12:28:00
G05     49.4           15.3                2.8 +/-    2.62       6.9 +/-    2.62  0.080 / 0.160
G10     237.0          12.7                3.8 +/-    4.10      10.0 +/-    4.10  0.080 / 0.160
G13     75.2           36.9                5.9 +/-    0.75       9.0 +/-    0.75  0.130 / 0.240
G15     119.3          53.1                8.3 +/-    0.66      10.0 +/-    0.66  0.110 / 0.240
G16     315.3          11.3               -4.4 +/-   11.63     -12.1 +/-   11.63  0.040 / 0.030
G18     247.8          45.6                7.5 +/-    3.29      10.0 +/-    3.29  0.040 / 0.040
G20     21.9           69.1                4.5 +/-    0.71       4.8 +/-    0.71  0.040 / 0.050
G21     317.5          50.8                3.5 +/-    0.86       4.3 +/-    0.86  0.040 / 0.060
G26     287.3          20.0                2.3 +/-    1.57       5.1 +/-    1.57  0.050 / 0.080
G29     154.8          67.9                7.4 +/-    0.27       7.9 +/-    0.27  0.030 / 0.070