PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-05:57:40
G01     126.7          10.2              -11.2 +/-   33.26     -31.2 +/-   33.26  0.040 / 0.050
G07     49.5           69.4                5.5 +/-    0.30       5.8 +/-    0.30  0.030 / 0.040
G08     52.7           41.9                4.0 +/-    1.27       5.6 +/-    1.27  0.040 / 0.050
G09     176.4          36.6                6.2 +/-    1.07       9.6 +/-    1.07  0.050 / 0.070
G11     123.1          35.0                7.1 +/-    0.97      11.3 +/-    0.97  0.060 / 0.080
G13     321.1          11.3               -6.9 +/-   11.80     -18.8 +/-   11.80  0.080 / 0.070
G17     199.4          12.0               -0.4 +/-   13.98      -1.2 +/-   13.98  0.150 / 0.110
G28     265.7          45.3                6.1 +/-    3.45       8.2 +/-    3.45  0.110 / 0.140
G30     327.1          56.8                4.4 +/-    0.84       5.2 +/-    0.84  0.020 / 0.040