PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-22:57:30
G10     252.3          28.3               13.0 +/-    1.85      23.5 +/-    1.85  0.030 / 0.040
G13     51.7           28.6                7.4 +/-    1.85      13.4 +/-    1.85  0.030 / 0.040
G15     87.7           58.9               11.1 +/-    1.04      12.7 +/-    1.04  0.110 / 0.120
G16     292.0          15.9                9.2 +/-    1.66      22.5 +/-    1.66  0.080 / 0.100
G20     256.9          24.2               16.2 +/-    3.15      32.2 +/-    3.15  0.080 / 0.140
G21     334.8          60.9                8.9 +/-    0.60      10.0 +/-    0.60  0.110 / 0.190
G26     264.3          14.9               12.1 +/-    1.44      30.2 +/-    1.44  0.030 / 0.040
G29     165.8          48.9               11.7 +/-    0.76      14.9 +/-    0.76  0.040 / 0.030