PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-04:58:00
G10     288.7          48.6                7.4 +/-    1.17       9.5 +/-    1.17  0.040 / 0.040
G15     47.6           34.2                4.9 +/-    0.88       7.9 +/-    0.88  0.040 / 0.050
G20     4.3            65.3                5.9 +/-    0.46       6.5 +/-    0.46  0.070 / 0.090
G21     70.1           77.2                7.7 +/-    0.57       7.9 +/-    0.57  0.080 / 0.100
G24     103.4          23.9                5.3 +/-    0.87      10.6 +/-    0.87  0.040 / 0.060
G27     306.3          31.4                6.9 +/-    1.64      11.8 +/-    1.64  0.040 / 0.060
G29     168.8          13.8                8.2 +/-    5.15      21.0 +/-    5.15  0.040 / 0.080
G32     208.0          27.8                8.6 +/-    1.32      15.8 +/-    1.32  0.040 / 0.080