PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-06:28:00
G01     94.9           29.2                5.5 +/-    1.20       9.9 +/-    1.20  0.040 / 0.030
G07     119.2          50.1                8.1 +/-    0.55      10.2 +/-    0.55  0.030 / 0.030
G08     41.7           12.9                1.1 +/-    2.78       3.0 +/-    2.78  0.030 / 0.050
G11     78.6           44.3                6.1 +/-    0.64       8.3 +/-    0.64  0.030 / 0.060
G13     300.3          35.1                5.3 +/-    1.20       8.4 +/-    1.20  0.040 / 0.070
G17     209.3          46.8                7.2 +/-    1.02       9.5 +/-    1.02  0.040 / 0.070
G19     210.8          23.6                5.4 +/-    1.24      10.9 +/-    1.24  0.060 / 0.120
G28     319.8          59.8                5.1 +/-    0.93       5.8 +/-    0.93  0.060 / 0.130
G30     59.1           81.3                5.9 +/-    0.48       6.0 +/-    0.48  0.040 / 0.070