PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/06-11:57:30
G02     49.1           41.4                3.2 +/-    0.47       4.5 +/-    0.47  0.060 / 0.060
G05     90.6           70.1                3.3 +/-    0.47       3.5 +/-    0.47  0.040 / 0.060
G12     187.6          46.6                4.2 +/-    1.65       5.5 +/-    1.65  0.050 / 0.050
G21     262.7          11.9                2.0 +/-    4.26       5.3 +/-    4.26  0.050 / 0.040
G25     247.3          58.9                5.4 +/-    1.19       6.2 +/-    1.19  0.220 / 0.490
G29     321.2          44.4                3.1 +/-    0.67       4.3 +/-    0.67  0.220 / 0.520