PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-04:57:40
G10     266.5          37.8                9.3 +/-    0.98      14.0 +/-    0.98  0.130 / 0.410
G13     42.2           18.8                4.6 +/-    0.96      10.5 +/-    0.96  0.160 / 0.440
G15     59.8           49.3                6.5 +/-    1.05       8.3 +/-    1.05  0.040 / 0.050
G16     278.6          12.2                9.8 +/-    2.67      26.1 +/-    2.67  0.040 / 0.040
G20     332.9          68.2                6.5 +/-    1.00       6.9 +/-    1.00  0.120 / 0.150
G21     0.3            71.4                7.0 +/-    0.65       7.4 +/-    0.65  0.130 / 0.220
G24     120.4          14.0                6.7 +/-    1.85      17.1 +/-    1.85  0.070 / 0.080
G27     318.7          18.8                7.1 +/-    1.30      16.1 +/-    1.30  0.060 / 0.080
G29     168.2          32.2                8.5 +/-    0.49      14.2 +/-    0.49  0.080 / 0.240
G32     203.9          10.3              -14.1 +/-   26.83     -39.1 +/-   26.83  0.070 / 0.190