PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/27-08:57:30
G02     3.2            73.6                6.4 +/-    0.46       6.7 +/-    0.46  0.110 / 0.290
G05     162.3          39.3               11.0 +/-    1.02      16.2 +/-    1.02  0.090 / 0.230
G06     42.7           36.4                4.0 +/-    0.46       6.2 +/-    0.46  0.030 / 0.030
G12     297.2          76.1                7.5 +/-    0.36       7.7 +/-    0.36  0.030 / 0.030
G19     79.8           24.8                8.5 +/-    1.33      16.7 +/-    1.33  0.060 / 0.080
G24     219.7          16.9                5.6 +/-    1.86      13.2 +/-    1.86  0.070 / 0.090
G25     314.1          40.4                5.2 +/-    1.82       7.5 +/-    1.82  0.040 / 0.060
G29     291.6          14.4                3.5 +/-    1.13       8.9 +/-    1.13  0.050 / 0.080