PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-20:58:00
G05     52.6           9.8                 8.6 +/-    2.19      24.1 +/-    2.19  0.170 / 0.390
G10     242.9          20.0               13.6 +/-    1.00      29.9 +/-    1.00  0.080 / 0.360
G13     63.2           34.0                8.2 +/-    1.18      13.3 +/-    1.18  0.050 / 0.060
G15     114.4          57.6                8.6 +/-    0.63      10.0 +/-    0.63  0.040 / 0.050
G16     303.3          15.9                7.5 +/-    4.64      18.3 +/-    4.64  0.160 / 0.560
G20     245.4          4.8                 8.9 +/-    1.09      27.0 +/-    1.09  0.160 / 0.560
G21     321.7          52.7                9.7 +/-    1.38      11.8 +/-    1.38  0.090 / 0.140
G26     275.5          19.1                9.9 +/-    1.23      22.2 +/-    1.23  0.080 / 0.140
G29     162.0          62.4                9.1 +/-    0.66      10.1 +/-    0.66  0.030 / 0.050