PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-01:27:50
G01     117.3          19.3                9.1 +/-    1.30      20.3 +/-    1.30  0.130 / 0.230
G07     85.4           65.5                7.4 +/-    0.36       8.1 +/-    0.36  0.130 / 0.190
G08     44.6           31.0                4.5 +/-    1.02       7.7 +/-    1.02  0.100 / 0.330
G09     177.4          24.8                7.6 +/-    1.46      14.9 +/-    1.46  0.150 / 0.400
G11     106.8          40.5                7.8 +/-    1.25      11.2 +/-    1.25  0.040 / 0.090
G13     317.2          20.1                3.5 +/-    1.09       7.6 +/-    1.09  0.040 / 0.080
G17     202.5          26.1                7.6 +/-    1.64      14.4 +/-    1.64  0.050 / 0.100
G28     297.9          58.5                5.4 +/-    0.58       6.3 +/-    0.58  0.040 / 0.100
G30     1.5            72.5                5.3 +/-    1.09       5.5 +/-    1.09  0.060 / 0.120