PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/18-14:43:10
G02     5.6            73.4                8.0 +/-    0.68       8.3 +/-    0.68  0.040 / 0.080
G05     163.8          38.8                9.5 +/-    0.99      14.0 +/-    0.99  0.050 / 0.090
G06     43.3           36.0                5.0 +/-    1.31       7.9 +/-    1.31  0.230 / 0.380
G12     293.9          76.5                6.1 +/-    1.17       6.3 +/-    1.17  0.170 / 0.370
G19     82.7           21.5                7.0 +/-    1.94      14.9 +/-    1.94  0.020 / 0.030
G24     224.5          18.2                8.4 +/-    1.34      19.4 +/-    1.34  0.040 / 0.040
G25     315.1          37.4                7.1 +/-    0.66      10.8 +/-    0.66  0.050 / 0.070
G29     293.8          17.6                5.8 +/-    1.94      13.6 +/-    1.94  0.040 / 0.080