PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/15-11:27:40
G02     28.4           58.8                3.7 +/-    0.70       4.2 +/-    0.70  0.030 / 0.040
G05     153.9          54.6                7.8 +/-    1.31       9.3 +/-    1.31  0.030 / 0.040
G06     50.1           19.8                2.3 +/-    2.17       5.0 +/-    2.17  0.150 / 0.050
G12     197.7          72.8                7.2 +/-    0.39       7.5 +/-    0.39  0.150 / 0.080
G19     95.3           11.3                5.3 +/-    2.35      14.5 +/-    2.35  0.030 / 0.030
G25     304.9          48.7                4.9 +/-    3.68       6.2 +/-    3.68  0.030 / 0.030
G29     302.0          22.5                4.5 +/-    2.02       9.4 +/-    2.02  0.090 / 0.140