PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-07:28:00
G01     126.9          10.1              -10.2 +/-   30.48     -28.4 +/-   30.48  0.030 / 0.030
G07     51.1           69.2                4.7 +/-    1.00       5.0 +/-    1.00  0.030 / 0.030
G08     53.4           42.9                3.8 +/-    1.03       5.2 +/-    1.03  0.130 / 0.300
G09     177.1          37.5                6.2 +/-    1.30       9.5 +/-    1.30  0.260 / 0.540
G11     122.4          35.0                6.9 +/-    1.14      10.9 +/-    1.14  0.060 / 0.070
G13     321.1          11.2               -5.7 +/-   13.45     -15.5 +/-   13.45  0.050 / 0.070
G17     199.7          11.2               -4.2 +/-   15.46     -11.5 +/-   15.46  0.120 / 0.360
G18     104.9          15.7                5.9 +/-    2.22      14.4 +/-    2.22  0.120 / 0.300
G28     266.0          45.7                6.4 +/-    2.62       8.6 +/-    2.62  0.030 / 0.040
G30     327.9          57.4                3.7 +/-    0.94       4.3 +/-    0.94  0.040 / 0.040