PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-10:58:00
G02     35.9           52.9                4.8 +/-    0.69       5.8 +/-    0.69  0.030 / 0.030
G05     136.5          64.5                6.0 +/-    0.39       6.6 +/-    0.39  0.030 / 0.020
G06     55.1           14.5                2.4 +/-    1.78       6.0 +/-    1.78  0.110 / 0.160
G12     196.0          64.6                7.8 +/-    0.42       8.6 +/-    0.42  0.210 / 0.200
G25     282.3          60.1                4.5 +/-    2.31       5.0 +/-    2.31  0.040 / 0.030
G29     310.5          31.8                3.9 +/-    2.15       6.5 +/-    2.15  0.030 / 0.030