PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-08:57:50
G02     200.7          18.1                4.7 +/-    1.30      10.8 +/-    1.30  0.070 / 0.190
G06     171.5          52.2                6.4 +/-    1.05       7.9 +/-    1.05  0.070 / 0.190
G13     227.7          14.0                7.7 +/-    1.90      19.6 +/-    1.90  0.080 / 0.100
G17     23.9           58.8                4.6 +/-    0.48       5.3 +/-    0.48  0.080 / 0.100
G19     308.2          70.4                3.9 +/-    0.60       4.1 +/-    0.60  0.170 / 0.450
G24     308.5          32.1                3.4 +/-    1.09       5.8 +/-    1.09  0.220 / 0.590
G28     85.3           41.8                5.5 +/-    0.79       7.8 +/-    0.79  0.040 / 0.050
G30     157.6          17.2                3.9 +/-    1.94       9.3 +/-    1.94  0.030 / 0.040