PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-07:42:50
G01     92.3           30.1                5.3 +/-    1.11       9.2 +/-    1.11  0.030 / 0.040
G07     121.9          47.5                6.9 +/-    1.94       9.0 +/-    1.94  0.030 / 0.030
G08     41.9           11.6                3.4 +/-    2.52       9.0 +/-    2.52  0.040 / 0.080
G11     74.7           43.4                5.6 +/-    0.49       7.7 +/-    0.49  0.040 / 0.070
G13     297.6          36.1                5.1 +/-    2.20       8.0 +/-    2.20  0.060 / 0.110
G17     210.9          48.7                6.8 +/-    1.61       8.8 +/-    1.61  0.070 / 0.130
G19     211.8          25.9                6.9 +/-    2.85      13.3 +/-    2.85  0.040 / 0.060
G28     325.3          60.4                4.1 +/-    0.70       4.6 +/-    0.70  0.040 / 0.070
G30     79.3           80.5                5.1 +/-    0.66       5.1 +/-    0.66  0.060 / 0.060