PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/28-06:43:10
G01     87.3           32.3                5.3 +/-    1.72       8.8 +/-    1.72  0.040 / 0.050
G07     127.6          42.6                7.7 +/-    0.55      10.8 +/-    0.55  0.040 / 0.050
G11     66.4           38.3                5.2 +/-    0.83       7.8 +/-    0.83  0.030 / 0.040
G13     293.4          35.7                5.7 +/-    2.78       9.0 +/-    2.78  0.050 / 0.040
G15     313.5          11.3               -0.6 +/-   12.46      -1.6 +/-   12.46  0.090 / 0.180
G17     216.4          57.4                7.4 +/-    0.67       8.7 +/-    0.67  0.300 / 0.230
G19     215.7          30.6                5.8 +/-    3.32      10.0 +/-    3.32  0.040 / 0.030
G28     355.2          61.4                4.0 +/-    0.91       4.5 +/-    0.91  0.040 / 0.040
G30     111.6          73.3                6.3 +/-    0.89       6.5 +/-    0.89  0.080 / 0.100