PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-08:43:00
G10     288.4          48.4                6.7 +/-    3.11       8.7 +/-    3.11  0.070 / 0.080
G15     47.3           32.8                3.6 +/-    1.44       6.0 +/-    1.44  0.090 / 0.100
G20     53.2           44.3                5.5 +/-    1.33       7.5 +/-    1.33  0.050 / 0.060
G21     73.7           76.6                7.3 +/-    0.85       7.5 +/-    0.85  0.050 / 0.070
G24     104.3          23.9                7.4 +/-    1.30      14.7 +/-    1.30  0.040 / 0.030
G27     306.0          31.6                5.0 +/-    0.92       8.5 +/-    0.92  0.030 / 0.030
G29     168.5          13.1                5.2 +/-    1.69      13.4 +/-    1.69  0.090 / 0.120
G32     208.1          27.4                8.1 +/-    1.73      15.1 +/-    1.73  0.070 / 0.150