PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-05:12:40
G02     201.3          32.2                6.5 +/-    1.15      10.9 +/-    1.15  0.040 / 0.100
G06     170.8          62.0                5.6 +/-    0.73       6.3 +/-    0.73  0.050 / 0.110
G12     304.9          10.7               -6.5 +/-   11.21     -17.9 +/-   11.21  0.150 / 0.380
G17     31.4           53.0                3.3 +/-    0.69       4.0 +/-    0.69  0.120 / 0.300
G19     353.4          67.3                2.1 +/-    0.48       2.2 +/-    0.48  0.020 / 0.050
G24     303.3          35.0                2.5 +/-    1.11       4.0 +/-    1.11  0.030 / 0.050
G28     98.8           33.4                4.3 +/-    0.67       7.0 +/-    0.67  0.060 / 0.120