PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-14:58:10
G02     353.7          76.9                4.5 +/-    0.65       4.6 +/-    0.65  0.040 / 0.040
G05     166.0          34.3               10.7 +/-    1.57      17.3 +/-    1.57  0.040 / 0.040
G06     42.0           39.6                4.0 +/-    0.39       5.8 +/-    0.39  0.040 / 0.100
G12     306.3          73.0                4.9 +/-    0.46       5.1 +/-    0.46  0.040 / 0.080
G19     78.9           24.0                8.4 +/-    0.49      16.8 +/-    0.49  0.030 / 0.030
G24     227.7          21.2                9.4 +/-    2.24      20.1 +/-    2.24  0.030 / 0.040
G25     316.4          33.6                6.0 +/-    1.91       9.8 +/-    1.91  0.050 / 0.050