PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-00:58:00
G01     116.2          20.0                8.6 +/-    0.82      18.8 +/-    0.82  0.060 / 0.110
G07     88.1           64.9                5.7 +/-    0.56       6.2 +/-    0.56  0.040 / 0.100
G08     44.2           30.2                3.1 +/-    1.36       5.4 +/-    1.36  0.040 / 0.070
G09     177.3          23.7                6.2 +/-    1.25      12.4 +/-    1.25  0.050 / 0.070
G11     105.6          41.0                7.6 +/-    1.06      10.9 +/-    1.06  0.050 / 0.100
G13     316.5          21.1                3.1 +/-    2.15       6.6 +/-    2.15  0.050 / 0.080
G17     202.9          27.0                8.3 +/-    1.61      15.5 +/-    1.61  0.030 / 0.040
G28     300.2          58.9                5.8 +/-    0.72       6.7 +/-    0.72  0.020 / 0.040
G30     6.2            73.5                5.6 +/-    0.76       5.8 +/-    0.76  0.040 / 0.080