PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/23-04:57:40
G01     58.0           29.7                2.8 +/-    0.71       5.0 +/-    0.71  0.090 / 0.280
G06     180.6          15.3               -2.2 +/-   30.26      -5.3 +/-   30.26  0.090 / 0.290
G07     142.7          18.2                6.2 +/-    1.73      14.2 +/-    1.73  0.180 / 0.320
G11     46.6           20.8                1.1 +/-    1.58       2.5 +/-    1.58  0.180 / 0.370
G13     259.6          34.9                4.5 +/-    1.12       7.1 +/-    1.12  0.070 / 0.140
G15     293.1          15.9                0.9 +/-    2.52       2.2 +/-    2.52  0.070 / 0.120
G17     277.9          79.8                5.6 +/-    0.77       5.7 +/-    0.77  0.040 / 0.060
G19     233.9          50.4                5.6 +/-    0.94       7.1 +/-    0.94  0.040 / 0.060
G28     35.3           57.2                3.8 +/-    0.33       4.4 +/-    0.33  0.030 / 0.050
G30     145.4          51.7                6.2 +/-    1.21       7.7 +/-    1.21  0.050 / 0.050