PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-09:58:10
G01     110.3          23.6                5.4 +/-    2.27      10.9 +/-    2.27  0.120 / 0.140
G07     102.3          58.9                6.1 +/-    0.60       6.9 +/-    0.60  0.120 / 0.160
G08     42.1           21.7                3.3 +/-    1.42       7.1 +/-    1.42  0.030 / 0.040
G09     174.5          15.6                5.8 +/-    1.80      14.3 +/-    1.80  0.030 / 0.040
G11     92.3           41.1                5.4 +/-    0.71       7.7 +/-    0.71  0.030 / 0.060
G13     313.5          24.6                4.9 +/-    2.93       9.6 +/-    2.93  0.050 / 0.060
G17     203.9          36.6                6.2 +/-    2.39       9.6 +/-    2.39  0.080 / 0.200
G19     208.0          11.3               -0.5 +/-   13.00      -1.5 +/-   13.00  0.080 / 0.210
G28     311.9          60.3                4.7 +/-    0.91       5.3 +/-    0.91  0.080 / 0.160
G30     6.1            75.1                6.2 +/-    0.82       6.4 +/-    0.82  0.070 / 0.130