PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-06:58:00
G02     200.1          16.6                5.3 +/-    1.98      12.7 +/-    1.98  0.050 / 0.070
G06     173.4          48.7                7.1 +/-    0.70       9.0 +/-    0.70  0.060 / 0.070
G13     229.4          15.6                4.5 +/-    2.20      10.9 +/-    2.20  0.150 / 0.260
G17     21.5           60.6                5.4 +/-    0.40       6.1 +/-    0.40  0.100 / 0.270
G19     302.3          70.5                5.9 +/-    0.64       6.2 +/-    0.64  0.090 / 0.120
G24     309.8          30.9                3.3 +/-    1.76       5.7 +/-    1.76  0.070 / 0.120
G28     82.0           43.4                7.0 +/-    0.55       9.7 +/-    0.55  0.100 / 0.250
G30     157.1          19.3                7.5 +/-    1.82      16.7 +/-    1.82  0.140 / 0.270