PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/09-10:13:10
G10     301.7          53.6                4.5 +/-    1.06       5.4 +/-    1.06  0.030 / 0.030
G14     210.4          14.5                3.4 +/-    1.73       8.6 +/-    1.73  0.040 / 0.040
G15     45.7           25.3                4.5 +/-    1.90       8.7 +/-    1.90  0.160 / 0.230
G20     358.7          65.1                5.2 +/-    0.56       5.7 +/-    0.56  0.140 / 0.230
G21     107.9          69.0               -4.9 +/-    0.77      -5.2 +/-    0.77  0.220 / 0.380
G24     93.0           27.0                6.0 +/-    1.12      11.2 +/-    1.12  0.140 / 0.440
G27     300.1          33.9                3.8 +/-    2.14       6.2 +/-    2.14  0.070 / 0.030
G32     212.0          30.3                6.4 +/-    2.82      11.1 +/-    2.82  0.100 / 0.040