PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/18-05:12:50
G10     260.2          33.8                7.9 +/-    1.71      12.9 +/-    1.71  0.150 / 0.260
G13     45.6           23.4                5.3 +/-    1.87      10.7 +/-    1.87  0.150 / 0.300
G15     67.5           53.2                7.0 +/-    0.41       8.5 +/-    0.41  0.080 / 0.180
G16     284.5          14.0                5.2 +/-    2.17      13.2 +/-    2.17  0.090 / 0.250
G20     327.3          69.2                4.6 +/-    0.41       4.9 +/-    0.41  0.270 / 0.400
G21     348.3          67.3                3.6 +/-    0.63       3.8 +/-    0.63  0.130 / 0.310
G24     125.4          10.4              -10.4 +/-   32.27     -28.8 +/-   32.27  0.050 / 0.060
G26     256.9          10.9                8.5 +/-    1.96      23.1 +/-    1.96  0.040 / 0.050
G27     321.0          14.0                3.9 +/-    4.53       9.9 +/-    4.53  0.080 / 0.110
G29     167.4          38.7               10.4 +/-    1.05      15.5 +/-    1.05  0.090 / 0.100