PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-01:58:00
G01     75.8           33.3                4.9 +/-    0.52       8.0 +/-    0.52  0.100 / 0.340
G07     134.9          35.0                6.9 +/-    1.59      10.9 +/-    1.59  0.100 / 0.380
G11     58.7           35.3                3.3 +/-    0.86       5.2 +/-    0.86  0.030 / 0.050
G13     280.8          37.4                4.0 +/-    1.04       6.1 +/-    1.04  0.030 / 0.050
G15     305.5          14.8                0.8 +/-    3.03       2.0 +/-    3.03  0.050 / 0.030
G17     226.9          64.0                5.6 +/-    0.73       6.2 +/-    0.73  0.040 / 0.040
G19     221.4          38.7                5.3 +/-    2.20       7.8 +/-    2.20  0.050 / 0.100
G28     13.4           60.0                2.7 +/-    0.55       3.1 +/-    0.55  0.050 / 0.100
G30     130.8          61.1                4.6 +/-    0.70       5.2 +/-    0.70  0.100 / 0.110