PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-18:43:00
G10     250.4          26.9               11.5 +/-    1.58      21.5 +/-    1.58  0.040 / 0.050
G13     53.6           29.7               11.5 +/-    2.54      20.2 +/-    2.54  0.050 / 0.040
G15     93.9           59.5               12.5 +/-    0.84      14.3 +/-    0.84  0.110 / 0.330
G16     295.7          15.5                8.2 +/-    1.40      20.2 +/-    1.40  0.120 / 0.340
G20     269.6          50.7               13.1 +/-    2.85      16.4 +/-    2.85  0.060 / 0.160
G21     334.7          60.5               12.2 +/-    0.84      13.8 +/-    0.84  0.070 / 0.220
G26     268.5          15.6                9.7 +/-    2.17      23.7 +/-    2.17  0.040 / 0.030
G29     164.4          50.3               14.1 +/-    0.61      17.7 +/-    0.61  0.030 / 0.040