PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-10:57:50
G02     236.1          72.7                4.5 +/-    0.35       4.7 +/-    0.35  0.120 / 0.080
G05     174.7          12.6                3.4 +/-    2.06       9.0 +/-    2.06  0.070 / 0.070
G06     41.0           60.8                4.1 +/-    0.39       4.6 +/-    0.39  0.040 / 0.040
G12     321.6          50.5                3.2 +/-    0.44       4.0 +/-    0.44  0.040 / 0.030
G17     70.5           21.3                3.6 +/-    1.01       7.7 +/-    1.01  0.040 / 0.030
G19     52.4           42.3                3.8 +/-    1.06       5.3 +/-    1.06  0.030 / 0.030
G24     242.4          35.5                6.8 +/-    1.13      10.7 +/-    1.13  0.060 / 0.060