PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-07:13:10
G01     46.8           22.7                1.4 +/-    0.91       2.8 +/-    0.91  0.040 / 0.060
G06     180.4          25.6                5.0 +/-    1.38       9.7 +/-    1.38  0.040 / 0.080
G11     43.9           11.6                1.7 +/-    1.55       4.7 +/-    1.55  0.130 / 0.010
G13     247.5          27.9                6.1 +/-    1.86      11.1 +/-    1.86  0.030 / 0.030
G15     279.0          15.2                5.9 +/-    1.62      14.6 +/-    1.62  0.020 / 0.020
G17     339.5          76.4                4.3 +/-    0.61       4.4 +/-    0.61  0.100 / 0.290
G19     256.4          64.7                5.6 +/-    1.48       6.1 +/-    1.48  0.110 / 0.230
G24     319.0          10.5              -18.1 +/-   12.26     -50.0 +/-   12.26  0.070 / 0.200
G28     59.9           50.6                3.4 +/-    0.74       4.3 +/-    0.74  0.150 / 0.150
G30     151.0          35.5                6.7 +/-    0.80      10.5 +/-    0.80  0.060 / 0.120