PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-07:57:40
G01     119.1          16.4                4.6 +/-    1.25      11.0 +/-    1.25  0.030 / 0.040
G07     78.5           66.2                7.1 +/-    0.27       7.7 +/-    0.27  0.040 / 0.030
G08     46.6           35.2                4.9 +/-    0.97       7.7 +/-    0.97  0.140 / 0.190
G09     176.2          27.3                5.8 +/-    1.03      10.7 +/-    1.03  0.140 / 0.190
G11     111.3          40.4                7.0 +/-    1.13      10.2 +/-    1.13  0.080 / 0.130
G13     318.0          19.2                2.4 +/-    1.04       5.3 +/-    1.04  0.070 / 0.130
G17     201.1          20.7                4.8 +/-    2.97      10.4 +/-    2.97  0.100 / 0.200
G18     95.5           20.1                6.3 +/-    1.17      13.8 +/-    1.17  0.090 / 0.200
G28     279.5          51.3                6.9 +/-    1.74       8.6 +/-    1.74  0.040 / 0.040
G30     339.3          65.8                5.6 +/-    0.95       6.1 +/-    0.95  0.030 / 0.030