PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/17-09:42:50
G10     267.6          38.2                4.6 +/-    2.03       6.9 +/-    2.03  0.230 / 0.370
G13     41.8           18.3                3.4 +/-    2.46       7.8 +/-    2.46  0.210 / 0.380
G15     57.5           47.0                4.3 +/-    1.04       5.6 +/-    1.04  0.130 / 0.230
G16     278.9          11.6                5.6 +/-    1.74      15.2 +/-    1.74  0.240 / 0.300
G20     48.0           44.8                4.0 +/-    1.20       5.4 +/-    1.20  0.060 / 0.070
G21     8.2            72.8                5.1 +/-    0.90       5.3 +/-    0.90  0.070 / 0.070
G24     120.2          14.5                5.9 +/-    1.65      14.8 +/-    1.65  0.040 / 0.030
G27     317.9          20.1                3.3 +/-    1.49       7.3 +/-    1.49  0.030 / 0.030
G29     167.8          29.7                5.8 +/-    1.56      10.3 +/-    1.56  0.130 / 0.290
G32     204.2          10.8              -11.9 +/-   25.60     -32.7 +/-   25.60  0.170 / 0.250