PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/06-15:57:40
G10     278.4          44.6                8.6 +/-    1.92      11.6 +/-    1.92  0.030 / 0.030
G13     38.3           10.2                4.2 +/-   11.25      11.7 +/-   11.25  0.040 / 0.040
G15     51.8           42.3                5.8 +/-    0.67       8.1 +/-    0.67  0.120 / 0.140
G20     318.3          63.8                7.1 +/-    0.79       7.9 +/-    0.79  0.140 / 0.170
G21     47.4           76.1                7.5 +/-    0.59       7.7 +/-    0.59  0.190 / 0.250
G24     107.2          19.9                7.9 +/-    1.77      17.4 +/-    1.77  0.150 / 0.200
G27     314.6          24.1                4.8 +/-    1.22       9.5 +/-    1.22  0.130 / 0.140
G29     167.7          20.1                7.9 +/-    2.03      17.4 +/-    2.03  0.120 / 0.100
G32     206.1          17.5                8.6 +/-    1.89      20.1 +/-    1.89  0.110 / 0.390