PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/29-07:57:40
G01     48.5           24.1                2.4 +/-    1.55       4.7 +/-    1.55  0.030 / 0.050
G06     180.4          23.8                4.9 +/-    2.75       9.8 +/-    2.75  0.040 / 0.050
G07     146.8          9.9                 3.9 +/-    4.16      11.0 +/-    4.16  0.220 / 0.380
G11     44.3           13.2                1.5 +/-    2.31       4.0 +/-    2.31  0.150 / 0.390
G13     249.9          29.2                4.4 +/-    1.80       7.9 +/-    1.80  0.020 / 0.020
G15     281.3          15.6                3.5 +/-    1.17       8.5 +/-    1.17  0.020 / 0.020
G17     331.7          77.6                4.4 +/-    0.49       4.5 +/-    0.49  0.090 / 0.170
G19     251.9          63.1                4.9 +/-    0.51       5.4 +/-    0.51  0.100 / 0.190
G28     56.5           51.6                4.0 +/-    0.82       5.0 +/-    0.82  0.090 / 0.120
G30     150.2          38.3                6.1 +/-    0.79       9.1 +/-    0.79  0.080 / 0.210