PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-05:57:40
G10     297.7          52.5                3.6 +/-    1.71       4.4 +/-    1.71  0.050 / 0.080
G14     209.7          11.6               -4.2 +/-   13.56     -11.4 +/-   13.56  0.060 / 0.100
G15     46.0           27.3                2.5 +/-    1.46       4.7 +/-    1.46  0.040 / 0.040
G20     351.6          65.3                3.5 +/-    0.52       3.8 +/-    0.52  0.040 / 0.030
G21     96.3           73.4                5.2 +/-    0.26       5.4 +/-    0.26  0.060 / 0.040
G24     97.6           26.2                5.2 +/-    1.61      10.0 +/-    1.61  0.040 / 0.040
G27     302.5          33.2                1.9 +/-    1.88       3.1 +/-    1.88  0.180 / 0.340
G32     210.8          27.6                3.7 +/-    2.34       6.9 +/-    2.34  0.150 / 0.550