PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-11:43:00
G10     268.2          38.5                6.6 +/-    1.47       9.9 +/-    1.47  0.100 / 0.180
G13     41.6           18.0                3.5 +/-    1.17       8.2 +/-    1.17  0.090 / 0.200
G15     56.8           46.3                4.3 +/-    0.79       5.6 +/-    0.79  0.050 / 0.090
G16     279.4          11.3                5.5 +/-    3.80      15.0 +/-    3.80  0.070 / 0.090
G20     52.3           39.1                4.1 +/-    0.85       6.0 +/-    0.85  0.040 / 0.060
G21     13.7           73.5                4.3 +/-    0.90       4.5 +/-    0.90  0.040 / 0.060
G24     120.0          14.8                7.7 +/-    2.27      19.3 +/-    2.27  0.190 / 0.670
G27     317.5          20.7                1.6 +/-    3.63       3.4 +/-    3.63  0.160 / 0.670
G29     167.4          28.3                6.5 +/-    1.17      11.8 +/-    1.17  0.050 / 0.080
G32     204.5          10.9               -5.5 +/-   32.99     -15.0 +/-   32.99  0.060 / 0.070