PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-04:57:50
G10     288.7          48.6                7.0 +/-    3.18       8.9 +/-    3.18  0.040 / 0.030
G15     47.6           34.2                5.6 +/-    1.02       9.0 +/-    1.02  0.040 / 0.030
G20     4.3            65.3                6.1 +/-    0.54       6.6 +/-    0.54  0.080 / 0.100
G21     70.1           77.2                7.2 +/-    0.29       7.3 +/-    0.29  0.080 / 0.110
G24     103.4          23.9                6.2 +/-    0.72      12.5 +/-    0.72  0.090 / 0.130
G27     306.3          31.4                6.3 +/-    1.25      10.7 +/-    1.25  0.090 / 0.130
G29     168.8          13.8                5.6 +/-    2.60      14.4 +/-    2.60  0.060 / 0.070
G32     208.0          27.8                9.5 +/-    1.19      17.4 +/-    1.19  0.050 / 0.070