PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-16:58:10
G01     107.7          25.3               11.2 +/-    1.07      21.8 +/-    1.07  0.240 / 0.140
G07     105.7          59.1               13.0 +/-    1.28      14.9 +/-    1.28  0.110 / 0.180
G08     42.1           22.0                8.5 +/-    2.79      17.8 +/-    2.79  0.040 / 0.030
G09     174.7          13.8                9.0 +/-    3.09      23.1 +/-    3.09  0.030 / 0.040
G11     90.4           42.9               13.0 +/-    0.73      18.1 +/-    0.73  0.030 / 0.030
G13     310.1          28.2                9.9 +/-    1.65      18.0 +/-    1.65  0.030 / 0.040
G17     206.2          35.2               13.0 +/-    0.99      20.6 +/-    0.99  0.070 / 0.160
G18     81.2           24.2               10.8 +/-    2.18      21.5 +/-    2.18  0.080 / 0.150
G28     316.8          60.9               10.3 +/-    0.89      11.7 +/-    0.89  0.090 / 0.130
G30     22.0           77.8               12.7 +/-    0.72      12.9 +/-    0.72  0.120 / 0.190