PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-15:57:30
G10     280.7          45.7                8.8 +/-    1.88      11.7 +/-    1.88  0.120 / 0.150
G15     50.7           40.7                7.5 +/-    0.83      10.7 +/-    0.83  0.130 / 0.170
G20     322.6          64.3                8.4 +/-    0.49       9.2 +/-    0.49  0.040 / 0.040
G21     55.5           76.1                9.8 +/-    0.99      10.1 +/-    0.99  0.040 / 0.030
G24     105.4          20.8               10.6 +/-    1.84      22.8 +/-    1.84  0.090 / 0.120
G27     313.4          25.4                6.2 +/-    1.22      12.1 +/-    1.22  0.210 / 0.150
G29     167.7          18.2               11.3 +/-    0.93      25.9 +/-    0.93  0.060 / 0.040
G32     206.5          19.2               10.9 +/-    2.61      24.4 +/-    2.61  0.090 / 0.060