PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/09-16:42:50
G01     111.2          23.3                9.3 +/-    1.21      18.9 +/-    1.21  0.030 / 0.040
G07     99.5           61.6                8.3 +/-    0.62       9.2 +/-    0.62  0.030 / 0.040
G08     42.7           25.0                7.3 +/-    1.06      14.2 +/-    1.06  0.030 / 0.040
G09     175.3          17.0               10.2 +/-    1.15      24.2 +/-    1.15  0.030 / 0.030
G11     95.3           42.5                9.4 +/-    0.67      13.2 +/-    0.67  0.060 / 0.110
G13     312.7          25.9               11.6 +/-    2.48      22.2 +/-    2.48  0.060 / 0.120
G17     204.8          31.7               10.4 +/-    1.57      17.6 +/-    1.57  0.060 / 0.130
G18     85.1           23.6                7.2 +/-    1.07      14.5 +/-    1.07  0.060 / 0.110
G28     309.7          60.1                9.6 +/-    0.61      10.9 +/-    0.61  0.040 / 0.070
G30     8.2            75.6               10.2 +/-    0.90      10.5 +/-    0.90  0.040 / 0.060