PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-06:13:00
G01     108.1          23.4                5.5 +/-    0.93      11.2 +/-    0.93  0.050 / 0.030
G07     101.9          59.9                6.3 +/-    1.08       7.1 +/-    1.08  0.040 / 0.030
G08     42.3           23.6                3.8 +/-    1.66       7.7 +/-    1.66  0.100 / 0.140
G09     173.7          14.9                4.5 +/-    2.01      11.2 +/-    2.01  0.080 / 0.140
G11     96.6           44.4                6.7 +/-    0.54       9.2 +/-    0.54  0.080 / 0.070
G13     311.3          27.9                2.3 +/-    1.34       4.2 +/-    1.34  0.060 / 0.080
G17     203.7          33.8                6.6 +/-    1.67      10.8 +/-    1.67  0.200 / 0.420
G19     207.0          12.2                2.7 +/-    8.42       7.2 +/-    8.42  0.170 / 0.310
G28     297.4          56.1                4.1 +/-    1.48       4.8 +/-    1.48  0.040 / 0.030
G30     358.4          74.9                5.4 +/-    1.07       5.6 +/-    1.07  0.040 / 0.040