PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-11:57:20
G08     264.6          14.3                6.1 +/-    2.98      15.4 +/-    2.98  0.030 / 0.040
G10     75.3           54.9                5.8 +/-    0.49       6.9 +/-    0.49  0.030 / 0.040
G11     307.1          20.2                3.8 +/-    1.15       8.3 +/-    1.15  0.220 / 0.310
G14     282.0          67.7                6.4 +/-    0.42       6.8 +/-    0.42  0.190 / 0.270
G18     307.5          37.4                5.1 +/-    1.63       7.7 +/-    1.63  0.100 / 0.240
G22     300.3          12.2                3.7 +/-    4.80       9.8 +/-    4.80  0.090 / 0.280
G31     175.2          40.6                7.3 +/-    0.82      10.5 +/-    0.82  0.040 / 0.030
G32     5.6            68.4                4.9 +/-    0.65       5.3 +/-    0.65  0.040 / 0.030