PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/19-07:58:00
G02     201.4          31.2                5.7 +/-    2.14       9.7 +/-    2.14  0.150 / 0.310
G06     162.7          64.4                7.3 +/-    1.14       8.0 +/-    1.14  0.090 / 0.290
G12     305.2          14.8                1.8 +/-    1.81       4.6 +/-    1.81  0.090 / 0.110
G17     31.7           52.4                4.0 +/-    0.61       4.8 +/-    0.61  0.080 / 0.120
G19     356.2          67.2                4.0 +/-    0.59       4.3 +/-    0.59  0.040 / 0.050
G24     303.3          34.4                2.4 +/-    1.48       3.9 +/-    1.48  0.040 / 0.030
G28     92.6           41.4                6.0 +/-    0.47       8.5 +/-    0.47  0.050 / 0.100