PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-15:43:10
G10     266.9          38.6                7.2 +/-    0.73      10.7 +/-    0.73  0.210 / 0.480
G13     41.9           18.1                5.7 +/-    3.03      13.3 +/-    3.03  0.260 / 0.610
G15     60.6           50.4                6.3 +/-    0.66       7.9 +/-    0.66  0.040 / 0.040
G16     280.5          12.1                7.0 +/-    3.29      18.5 +/-    3.29  0.040 / 0.030
G20     297.4          60.3                7.3 +/-    0.90       8.2 +/-    0.90  0.150 / 0.260
G21     11.2           72.7                7.3 +/-    0.74       7.7 +/-    0.74  0.170 / 0.250
G24     116.3          14.6               10.1 +/-    1.50      25.5 +/-    1.50  0.060 / 0.070
G27     319.8          16.7                5.9 +/-    2.71      14.1 +/-    2.71  0.070 / 0.070
G29     167.0          30.3                8.9 +/-    0.88      15.5 +/-    0.88  0.360 / 0.270