PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-08:28:10
G02     212.6          54.7                7.1 +/-    1.24       8.5 +/-    1.24  0.040 / 0.050
G06     80.0           79.2                4.5 +/-    0.25       4.6 +/-    0.25  0.050 / 0.040
G12     316.6          31.3                5.0 +/-    0.95       8.5 +/-    0.95  0.060 / 0.110
G17     54.9           33.1                2.8 +/-    0.60       4.6 +/-    0.60  0.070 / 0.090
G19     30.1           54.1                4.3 +/-    0.68       5.1 +/-    0.68  0.060 / 0.070
G24     265.6          43.7                5.6 +/-    1.00       7.7 +/-    1.00  0.040 / 0.070
G28     118.5          19.1                8.7 +/-    0.96      19.5 +/-    0.96  0.040 / 0.080