PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-09:57:50
G01     306.9          33.3                4.5 +/-    1.10       7.4 +/-    1.10  0.040 / 0.040
G10     106.4          39.9                5.7 +/-    0.70       8.3 +/-    0.70  0.040 / 0.050
G11     282.6          27.7                3.4 +/-    1.75       6.3 +/-    1.75  0.060 / 0.110
G14     344.7          67.9                3.5 +/-    0.92       3.8 +/-    0.92  0.080 / 0.120
G18     277.9          49.4                4.4 +/-    1.28       5.7 +/-    1.28  0.060 / 0.200
G22     310.9          30.2                3.8 +/-    2.11       6.6 +/-    2.11  0.080 / 0.200
G25     82.5           16.8                3.2 +/-    1.58       7.7 +/-    1.58  0.040 / 0.040
G31     161.4          67.1                6.7 +/-    0.83       7.3 +/-    0.83  0.030 / 0.040
G32     38.4           50.8                4.9 +/-    0.41       6.2 +/-    0.41  0.050 / 0.050