PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-07:12:50
G01     100.1          28.7                6.2 +/-    0.92      11.2 +/-    0.92  0.050 / 0.050
G07     116.3          52.0                7.4 +/-    0.36       9.1 +/-    0.36  0.030 / 0.050
G08     41.7           13.9                0.6 +/-    1.75       1.4 +/-    1.75  0.040 / 0.060
G11     79.8           41.5                5.6 +/-    0.68       7.9 +/-    0.68  0.050 / 0.070
G13     305.2          31.1                5.6 +/-    0.87       9.6 +/-    0.87  0.040 / 0.050
G17     208.6          46.3                6.3 +/-    1.51       8.3 +/-    1.51  0.040 / 0.040
G19     210.9          20.3                2.8 +/-    1.80       6.2 +/-    1.80  0.070 / 0.180
G28     332.7          61.7                3.5 +/-    0.49       4.0 +/-    0.49  0.060 / 0.170
G30     61.6           79.3                3.5 +/-    0.27       3.6 +/-    0.27  0.060 / 0.140