PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/01-04:28:00
G10     300.7          53.4                4.3 +/-    1.73       5.2 +/-    1.73  0.070 / 0.090
G14     210.2          13.1                6.2 +/-    2.88      16.1 +/-    2.88  0.070 / 0.090
G15     45.8           25.7                3.5 +/-    0.50       6.7 +/-    0.50  0.040 / 0.040
G20     355.8          65.2                5.3 +/-    0.97       5.7 +/-    0.97  0.040 / 0.040
G21     100.7          72.9                6.5 +/-    0.62       6.8 +/-    0.62  0.050 / 0.050
G24     96.0           27.0                5.8 +/-    0.48      10.8 +/-    0.48  0.050 / 0.050
G27     300.3          34.2               15.0 +/-    1.23      24.2 +/-    1.23  0.090 / 0.560
G32     211.4          30.3                7.0 +/-    1.18      12.2 +/-    1.18  0.090 / 0.490