PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-09:13:00
G02     230.4          70.8                5.8 +/-    0.41       6.1 +/-    0.41  0.050 / 0.050
G05     175.1          10.7               -3.5 +/-   15.92      -9.7 +/-   15.92  0.040 / 0.050
G06     42.5           64.9                5.3 +/-    0.54       5.8 +/-    0.54  0.110 / 0.250
G12     321.0          46.6                4.6 +/-    0.94       6.1 +/-    0.94  0.130 / 0.270
G17     68.0           23.0                3.6 +/-    3.09       7.5 +/-    3.09  0.050 / 0.050
G19     49.6           43.7                5.4 +/-    0.97       7.4 +/-    0.97  0.040 / 0.040
G25     315.7          13.5                4.2 +/-    2.14      10.8 +/-    2.14  0.150 / 0.230