PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/29-06:57:50
G01     112.6          22.2                4.4 +/-    1.28       9.2 +/-    1.28  0.080 / 0.150
G07     98.3           61.1                6.9 +/-    0.78       7.7 +/-    0.78  0.080 / 0.140
G08     42.2           22.9                3.3 +/-    1.59       6.7 +/-    1.59  0.110 / 0.220
G09     173.1          15.3                5.5 +/-    1.80      13.7 +/-    1.80  0.180 / 0.230
G11     94.8           42.0                6.4 +/-    0.74       9.0 +/-    0.74  0.030 / 0.030
G13     313.5          25.2                4.8 +/-    1.44       9.4 +/-    1.44  0.030 / 0.030
G17     202.7          34.2                6.4 +/-    0.77      10.3 +/-    0.77  0.030 / 0.030
G18     84.2           22.7                4.5 +/-    2.64       9.4 +/-    2.64  0.030 / 0.030
G28     303.7          59.0                5.7 +/-    1.69       6.5 +/-    1.69  0.090 / 0.150
G30     356.8          73.5                6.3 +/-    1.16       6.6 +/-    1.16  0.080 / 0.160