PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-16:27:50
G01     67.5           32.5               10.1 +/-    1.24      16.9 +/-    1.24  0.030 / 0.050
G07     139.0          28.5               11.0 +/-    1.55      19.9 +/-    1.55  0.030 / 0.050
G11     51.7           28.5                8.3 +/-    0.92      15.0 +/-    0.92  0.060 / 0.140
G13     270.7          37.1               10.8 +/-    0.91      16.5 +/-    0.91  0.060 / 0.180
G15     301.8          14.8                7.1 +/-    1.95      17.7 +/-    1.95  0.050 / 0.080
G17     238.7          70.7               11.3 +/-    0.64      11.9 +/-    0.64  0.050 / 0.080
G18     46.8           16.7                8.3 +/-    1.40      19.8 +/-    1.40  0.050 / 0.090
G19     226.2          42.0               12.5 +/-    0.91      17.6 +/-    0.91  0.050 / 0.120
G28     24.5           58.6               10.1 +/-    0.39      11.6 +/-    0.39  0.030 / 0.050
G30     138.5          59.5               11.4 +/-    0.54      13.0 +/-    0.54  0.030 / 0.050