PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-11:43:10
G10     286.4          47.4                3.2 +/-    0.91       4.2 +/-    0.91  0.040 / 0.040
G15     47.6           33.5                2.9 +/-    0.41       4.8 +/-    0.41  0.040 / 0.040
G20     63.4           28.5                3.0 +/-    0.97       5.4 +/-    0.97  0.050 / 0.090
G21     73.0           76.0                6.8 +/-    0.30       6.9 +/-    0.30  0.060 / 0.080
G24     106.2          23.2                7.0 +/-    0.92      14.3 +/-    0.92  0.060 / 0.130
G27     307.1          31.0                4.9 +/-    2.13       8.3 +/-    2.13  0.050 / 0.140
G29     168.0          13.4                7.9 +/-    2.14      20.4 +/-    2.14  0.050 / 0.050
G32     207.8          25.3                3.7 +/-    2.88       7.2 +/-    2.88  0.050 / 0.060