PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/15-19:42:50
G01     255.7          37.2                9.7 +/-    0.82      14.9 +/-    0.82  0.050 / 0.040
G03     316.4          41.4                9.3 +/-    1.79      13.3 +/-    1.79  0.050 / 0.050
G11     241.9          14.8               10.0 +/-    1.60      24.9 +/-    1.60  0.110 / 0.110
G14     55.8           43.6                9.3 +/-    0.66      12.8 +/-    0.66  0.070 / 0.080
G22     308.7          62.8                8.4 +/-    0.95       9.3 +/-    0.95  0.030 / 0.040
G23     283.8          17.2                9.2 +/-    4.54      21.8 +/-    4.54  0.020 / 0.040
G25     42.8           12.4                7.4 +/-    0.91      19.6 +/-    0.91  0.090 / 0.180
G26     140.3          34.6               14.1 +/-    0.62      22.6 +/-    0.62  0.130 / 0.200
G31     42.0           63.0                8.8 +/-    0.61       9.7 +/-    0.61  0.070 / 0.110
G32     74.2           25.3               10.1 +/-    0.74      19.6 +/-    0.74  0.060 / 0.090