PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-06:58:00
G01     123.0          13.3                3.3 +/-    2.63       8.5 +/-    2.63  0.030 / 0.040
G07     64.8           68.3                5.1 +/-    0.80       5.4 +/-    0.80  0.030 / 0.040
G08     49.3           38.6                3.2 +/-    0.48       4.8 +/-    0.48  0.030 / 0.040
G09     176.4          31.9                6.5 +/-    0.73      11.0 +/-    0.73  0.030 / 0.040
G11     117.5          37.9                7.1 +/-    1.18      10.7 +/-    1.18  0.110 / 0.380
G13     319.8          15.3                0.9 +/-    1.83       2.3 +/-    1.83  0.120 / 0.350
G17     200.1          16.3                4.6 +/-    1.09      11.1 +/-    1.09  0.110 / 0.570
G18     100.3          18.0                5.8 +/-    1.17      13.4 +/-    1.17  0.130 / 0.490
G28     272.3          48.4                5.6 +/-    1.40       7.3 +/-    1.40  0.100 / 0.410
G30     332.6          61.3                4.7 +/-    0.75       5.3 +/-    0.75  0.140 / 0.370