PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-00:12:30
G01     121.0          16.6                8.7 +/-    2.24      20.8 +/-    2.24  0.040 / 0.050
G07     74.2           67.6                6.7 +/-    0.63       7.2 +/-    0.63  0.040 / 0.060
G08     46.7           35.3                6.8 +/-    0.41      10.7 +/-    0.41  0.100 / 0.130
G09     178.1          29.2                8.4 +/-    3.19      15.0 +/-    3.19  0.050 / 0.130
G11     112.9          38.7                8.3 +/-    0.67      12.3 +/-    0.67  0.040 / 0.070
G13     319.0          16.9                5.0 +/-    2.06      11.9 +/-    2.06  0.030 / 0.070
G17     201.7          21.2                9.2 +/-    3.15      19.6 +/-    3.15  0.110 / 0.220
G28     289.9          56.9                8.2 +/-    0.87       9.6 +/-    0.87  0.080 / 0.200