PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-00:57:50
G07     337.4          59.4                3.5 +/-    0.26       4.0 +/-    0.26  0.100 / 0.150
G08     95.2           52.6                7.8 +/-    0.47       9.5 +/-    0.47  0.100 / 0.160
G09     190.3          71.4                7.7 +/-    0.71       8.0 +/-    0.71  0.040 / 0.040
G11     145.1          14.3                6.7 +/-    2.38      17.1 +/-    2.38  0.040 / 0.040
G23     156.4          38.7                8.4 +/-    0.66      12.5 +/-    0.66  0.030 / 0.030
G27     51.8           29.4                4.6 +/-    1.28       8.1 +/-    1.28  0.030 / 0.040
G28     240.0          32.5                3.9 +/-    1.42       6.5 +/-    1.42  0.120 / 0.070
G30     306.1          39.4                4.0 +/-    0.72       5.9 +/-    0.72  0.080 / 0.080