PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-11:12:50
G01     122.0          15.6                4.1 +/-    2.07      10.0 +/-    2.07  0.020 / 0.020
G07     71.8           67.9                4.4 +/-    0.65       4.7 +/-    0.65  0.030 / 0.030
G08     45.7           32.4                2.9 +/-    2.73       4.9 +/-    2.73  0.030 / 0.030
G09     175.5          27.1                4.0 +/-    1.97       7.4 +/-    1.97  0.030 / 0.030
G11     109.3          38.5                5.9 +/-    1.13       8.8 +/-    1.13  0.140 / 0.230
G13     319.0          17.0                2.6 +/-    1.71       6.1 +/-    1.71  0.150 / 0.180
G17     200.3          22.6                3.1 +/-    2.51       6.4 +/-    2.51  0.130 / 0.310
G18     97.0           19.4                3.4 +/-    1.32       7.7 +/-    1.32  0.290 / 0.270
G28     286.1          55.8                3.2 +/-    2.95       3.8 +/-    2.95  0.130 / 0.230
G30     338.1          64.4                4.4 +/-    0.51       4.8 +/-    0.51  0.090 / 0.200