PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-16:12:30
G01     305.8          34.0                7.9 +/-    1.23      12.8 +/-    1.23  0.080 / 0.120
G10     107.6          39.3                8.6 +/-    0.72      12.6 +/-    0.72  0.070 / 0.160
G11     283.0          27.2                8.6 +/-    1.66      16.1 +/-    1.66  0.030 / 0.040
G14     356.6          66.6                6.8 +/-    0.64       7.3 +/-    0.64  0.020 / 0.040
G22     310.5          28.3                6.2 +/-    1.12      11.3 +/-    1.12  0.100 / 0.230
G25     81.3           17.2                9.0 +/-    0.78      21.2 +/-    0.78  0.090 / 0.190
G31     163.9          67.2               10.0 +/-    0.90      10.7 +/-    0.90  0.060 / 0.060
G32     38.5           50.8                8.7 +/-    0.67      10.9 +/-    0.67  0.060 / 0.060