PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-19:12:50
G01     65.3           31.7               11.0 +/-    2.66      18.6 +/-    2.66  0.060 / 0.060
G07     139.1          21.1               12.1 +/-    2.81      25.9 +/-    2.81  0.040 / 0.040
G11     50.2           27.2                7.9 +/-    2.57      14.7 +/-    2.57  0.100 / 0.130
G13     268.0          37.6               11.7 +/-    3.12      17.8 +/-    3.12  0.090 / 0.120
G15     297.9          16.3               10.7 +/-    3.06      25.7 +/-    3.06  0.040 / 0.050
G17     241.1          72.8               13.2 +/-    0.95      13.8 +/-    0.95  0.050 / 0.040
G18     44.4           14.8                9.9 +/-    2.44      24.7 +/-    2.44  0.180 / 0.270
G19     226.9          46.5               13.1 +/-    2.85      17.3 +/-    2.85  0.200 / 0.360
G28     18.0           60.0               13.4 +/-    2.40      15.3 +/-    2.40  0.060 / 0.110
G30     139.5          55.1               12.3 +/-    0.46      14.6 +/-    0.46  0.080 / 0.100