PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/03-10:27:50
G01     92.1           30.4                4.4 +/-    1.62       7.7 +/-    1.62  0.040 / 0.040
G07     122.8          45.9                5.5 +/-    1.11       7.4 +/-    1.11  0.040 / 0.050
G08     42.1           13.0                2.1 +/-    3.49       5.5 +/-    3.49  0.040 / 0.060
G11     72.8           42.4                4.2 +/-    0.85       5.9 +/-    0.85  0.040 / 0.060
G13     297.0          36.2                5.7 +/-    4.03       8.8 +/-    4.03  0.030 / 0.030
G17     211.8          47.5                5.7 +/-    0.66       7.4 +/-    0.66  0.030 / 0.030
G18     66.1           24.2                5.1 +/-    1.31      10.1 +/-    1.31  0.060 / 0.100
G19     212.2          26.1                5.1 +/-    1.12       9.8 +/-    1.12  0.060 / 0.120
G28     328.0          60.8                4.7 +/-    0.65       5.3 +/-    0.65  0.060 / 0.150
G30     89.1           79.1                5.4 +/-    0.50       5.5 +/-    0.50  0.090 / 0.150