PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-10:42:30
G01     65.6           31.4                5.0 +/-    1.24       8.5 +/-    1.24  0.030 / 0.030
G07     138.7          26.2                7.6 +/-    1.65      14.5 +/-    1.65  0.040 / 0.040
G11     51.8           30.1                4.8 +/-    0.91       8.5 +/-    0.91  0.080 / 0.130
G13     269.0          38.1                5.7 +/-    3.30       8.6 +/-    3.30  0.060 / 0.120
G15     300.4          15.3                1.8 +/-    1.77       4.4 +/-    1.77  0.170 / 0.310
G17     236.2          69.3                7.2 +/-    0.39       7.7 +/-    0.39  0.160 / 0.400
G18     45.9           16.3                3.8 +/-    1.74       9.2 +/-    1.74  0.080 / 0.110
G19     225.8          46.9                6.1 +/-    2.14       8.0 +/-    2.14  0.120 / 0.080
G28     11.2           60.9                5.9 +/-    1.73       6.7 +/-    1.73  0.040 / 0.050
G30     139.1          60.2                8.5 +/-    0.46       9.6 +/-    0.46  0.040 / 0.050