PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-12:42:50
G01     121.5          15.9                5.4 +/-    2.34      13.2 +/-    2.34  0.080 / 0.110
G07     77.6           65.4                5.0 +/-    0.63       5.4 +/-    0.63  0.110 / 0.140
G08     45.8           32.3                2.8 +/-    0.97       4.6 +/-    0.97  0.120 / 0.370
G09     175.5          27.0                4.2 +/-    1.47       7.8 +/-    1.47  0.130 / 0.390
G11     107.7          37.3                5.8 +/-    1.13       8.9 +/-    1.13  0.040 / 0.030
G13     319.9          15.1                2.7 +/-    2.61       6.6 +/-    2.61  0.040 / 0.030
G17     200.3          23.8                5.6 +/-    2.77      11.2 +/-    2.77  0.030 / 0.030
G28     287.7          56.1                4.1 +/-    2.17       4.8 +/-    2.17  0.040 / 0.020
G30     338.5          64.1                4.0 +/-    0.97       4.4 +/-    0.97  0.160 / 0.300