PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/27-06:13:10
G02     201.3          26.6                7.3 +/-    1.99      13.9 +/-    1.99  0.060 / 0.070
G06     170.4          59.0                8.7 +/-    0.53       9.9 +/-    0.53  0.060 / 0.080
G17     31.4           52.8                5.3 +/-    1.09       6.5 +/-    1.09  0.060 / 0.120
G19     335.5          69.5                4.0 +/-    0.82       4.3 +/-    0.82  0.080 / 0.100
G24     302.3          37.0                4.1 +/-    2.40       6.2 +/-    2.40  0.040 / 0.030
G28     93.1           38.1                7.6 +/-    1.58      11.5 +/-    1.58  0.040 / 0.030
G30     158.1          10.1                7.4 +/-    2.55      20.7 +/-    2.55  0.030 / 0.030