PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/16-04:57:40
G07     46.1           69.2                5.9 +/-    1.14       6.3 +/-    1.14  0.030 / 0.030
G08     51.9           40.1                5.1 +/-    1.12       7.5 +/-    1.12  0.040 / 0.040
G09     175.7          37.0                6.9 +/-    1.21      10.5 +/-    1.21  0.070 / 0.170
G11     120.3          33.6                6.3 +/-    1.92      10.2 +/-    1.92  0.310 / 0.160
G17     198.5          13.4                5.3 +/-    1.85      13.6 +/-    1.85  0.190 / 0.210
G18     104.6          14.8                5.5 +/-    1.44      13.7 +/-    1.44  0.150 / 0.220
G23     161.4          12.9                5.3 +/-    1.30      13.9 +/-    1.30  0.150 / 0.260
G27     38.3           12.0                2.2 +/-    2.34       5.9 +/-    2.34  0.190 / 0.310
G28     268.7          49.5                6.4 +/-    3.62       8.1 +/-    3.62  0.060 / 0.070
G30     326.7          56.1                5.4 +/-    0.84       6.4 +/-    0.84  0.090 / 0.070