PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/08-04:43:00
G01     123.9          14.3                8.2 +/-    1.70      20.7 +/-    1.70  0.080 / 0.080
G07     65.8           68.3                4.7 +/-    0.30       5.0 +/-    0.30  0.080 / 0.080
G08     47.7           36.0                4.4 +/-    0.95       6.8 +/-    0.95  0.130 / 0.130
G09     178.0          32.3                7.0 +/-    1.71      11.7 +/-    1.71  0.150 / 0.210
G11     114.3          36.6                6.7 +/-    1.15      10.4 +/-    1.15  0.060 / 0.060
G13     320.5          13.5                1.2 +/-    2.51       3.1 +/-    2.51  0.060 / 0.060
G17     200.3          19.8                5.3 +/-    1.73      11.7 +/-    1.73  0.090 / 0.090
G28     283.8          55.3                4.0 +/-    2.49       4.7 +/-    2.49  0.080 / 0.090
G30     340.5          64.7                3.8 +/-    0.27       4.2 +/-    0.27  0.030 / 0.030