PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-01:58:10
G01     121.1          16.5                5.5 +/-    2.48      13.2 +/-    2.48  0.040 / 0.060
G07     74.3           67.5                3.6 +/-    0.79       3.9 +/-    0.79  0.070 / 0.060
G08     46.4           34.4                3.1 +/-    1.30       4.9 +/-    1.30  0.040 / 0.060
G09     178.0          29.2                5.8 +/-    1.58      10.3 +/-    1.58  0.040 / 0.070
G11     111.9          38.5                6.9 +/-    0.80      10.2 +/-    0.80  0.100 / 0.190
G13     319.2          16.6                2.5 +/-    3.32       6.1 +/-    3.32  0.300 / 0.150
G17     201.4          22.0                5.1 +/-    2.38      10.7 +/-    2.38  0.030 / 0.040
G28     289.8          56.9                3.7 +/-    1.69       4.3 +/-    1.69  0.030 / 0.030
G30     350.1          68.9                2.1 +/-    0.52       2.2 +/-    0.52  0.180 / 0.230