PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-10:42:40
G01     65.6           31.4                6.5 +/-    1.04      11.1 +/-    1.04  0.050 / 0.060
G07     138.7          26.2                8.4 +/-    1.18      15.9 +/-    1.18  0.060 / 0.050
G11     51.8           30.1                5.7 +/-    1.40      10.0 +/-    1.40  0.040 / 0.050
G13     269.0          38.1                7.6 +/-    1.10      11.5 +/-    1.10  0.040 / 0.040
G15     300.4          15.3                0.9 +/-    1.34       2.3 +/-    1.34  0.080 / 0.110
G17     236.2          69.3                7.8 +/-    0.89       8.2 +/-    0.89  0.070 / 0.130
G18     45.9           16.3                3.1 +/-    1.41       7.5 +/-    1.41  0.070 / 0.120
G19     225.8          46.9                6.0 +/-    0.90       7.9 +/-    0.90  0.080 / 0.120
G28     11.2           60.9                5.5 +/-    0.55       6.2 +/-    0.55  0.050 / 0.080
G30     139.1          60.2                9.9 +/-    1.06      11.3 +/-    1.06  0.050 / 0.070