PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-18:27:40
G01     124.5          13.8               16.3 +/-    2.16      41.8 +/-    2.16  0.050 / 0.070
G07     61.3           69.2               10.2 +/-    0.44      10.9 +/-    0.44  0.040 / 0.060
G08     49.6           39.7               10.9 +/-    1.09      15.9 +/-    1.09  0.030 / 0.040
G09     178.1          33.0               14.1 +/-    1.12      23.3 +/-    1.12  0.030 / 0.040
G11     116.2          36.8               14.1 +/-    1.00      21.6 +/-    1.00  0.160 / 0.410
G13     320.3          14.0                7.6 +/-    2.24      19.5 +/-    2.24  0.200 / 0.410
G17     201.6          14.8               14.8 +/-    1.77      37.0 +/-    1.77  0.080 / 0.130
G18     101.2          18.1               14.1 +/-    1.25      32.5 +/-    1.25  0.060 / 0.100
G28     281.9          54.7               11.9 +/-    0.76      14.3 +/-    0.76  0.040 / 0.050
G30     339.0          64.2                8.8 +/-    0.63       9.6 +/-    0.63  0.030 / 0.050