PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-04:58:10
G01     107.5          25.3                5.0 +/-    0.93       9.7 +/-    0.93  0.050 / 0.050
G07     106.2          58.1                5.5 +/-    0.46       6.4 +/-    0.46  0.050 / 0.050
G08     42.0           20.6                2.4 +/-    1.73       5.2 +/-    1.73  0.040 / 0.040
G09     175.3          14.6                6.7 +/-    0.77      16.7 +/-    0.77  0.030 / 0.040
G11     90.6           42.3                5.4 +/-    0.74       7.5 +/-    0.74  0.060 / 0.130
G13     310.9          27.1                3.1 +/-    1.34       5.8 +/-    1.34  0.060 / 0.140
G17     205.5          38.3                6.0 +/-    1.60       8.9 +/-    1.60  0.050 / 0.080
G19     208.8          13.6                3.5 +/-    2.82       9.0 +/-    2.82  0.050 / 0.070
G28     318.4          61.0                3.6 +/-    0.43       4.0 +/-    0.43  0.070 / 0.120
G30     29.6           77.8                4.9 +/-    0.91       5.0 +/-    0.91  0.070 / 0.110