PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/28-06:27:50
G01     96.0           30.2                7.9 +/-    0.89      13.7 +/-    0.89  0.040 / 0.040
G07     120.5          49.1                8.2 +/-    0.72      10.4 +/-    0.72  0.040 / 0.050
G08     42.0           11.1                3.3 +/-    2.15       8.9 +/-    2.15  0.030 / 0.040
G11     75.3           41.0                5.4 +/-    1.75       7.7 +/-    1.75  0.030 / 0.030
G13     301.5          33.0                1.9 +/-    1.05       3.1 +/-    1.05  0.350 / 0.350
G17     210.9          49.9                7.2 +/-    0.60       9.1 +/-    0.60  0.170 / 0.290
G19     212.3          23.7                6.7 +/-    1.99      13.6 +/-    1.99  0.030 / 0.050
G28     340.4          61.8                3.6 +/-    0.70       4.1 +/-    0.70  0.030 / 0.040
G30     84.3           78.0                5.3 +/-    0.62       5.4 +/-    0.62  0.060 / 0.100