PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/26-14:42:40
G10     282.4          46.4                5.6 +/-    1.36       7.4 +/-    1.36  0.040 / 0.050
G15     49.8           38.9                4.6 +/-    0.61       6.9 +/-    0.61  0.040 / 0.050
G20     325.6          64.5                4.4 +/-    0.49       4.8 +/-    0.49  0.040 / 0.050
G21     64.6           75.5                6.1 +/-    0.92       6.2 +/-    0.92  0.040 / 0.060
G24     104.9          21.4                9.4 +/-    1.06      19.9 +/-    1.06  0.090 / 0.150
G27     312.7          26.0                3.4 +/-    1.32       6.6 +/-    1.32  0.090 / 0.140
G29     167.4          16.5                8.3 +/-    1.78      20.0 +/-    1.78  0.080 / 0.140
G32     207.0          19.9                2.8 +/-    1.98       6.2 +/-    1.98  0.080 / 0.130