PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-16:42:30
G10     253.1          29.2               12.1 +/-    2.55      21.5 +/-    2.55  0.040 / 0.040
G13     50.9           27.8                7.8 +/-    1.77      14.3 +/-    1.77  0.040 / 0.040
G15     84.5           58.3               10.5 +/-    0.56      12.1 +/-    0.56  0.140 / 0.490
G16     293.4          15.1                6.1 +/-    2.38      15.0 +/-    2.38  0.120 / 0.430
G20     274.0          52.7               10.3 +/-    3.15      12.6 +/-    3.15  0.120 / 0.160
G21     340.8          63.4                9.2 +/-    0.26      10.2 +/-    0.26  0.160 / 0.210
G26     266.6          14.3                8.7 +/-    1.86      22.0 +/-    1.86  0.030 / 0.030
G29     164.7          46.1               12.7 +/-    0.93      16.9 +/-    0.93  0.030 / 0.030