PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-00:58:10
G01     101.2          28.4                6.1 +/-    1.95      11.0 +/-    1.95  0.030 / 0.050
G07     114.7          54.0                6.6 +/-    0.67       8.0 +/-    0.67  0.040 / 0.050
G08     41.9           17.4                4.6 +/-    0.79      10.7 +/-    0.79  0.040 / 0.070
G11     84.5           43.4                6.0 +/-    0.67       8.2 +/-    0.67  0.030 / 0.060
G13     305.4          31.2                5.6 +/-    1.34       9.6 +/-    1.34  0.090 / 0.160
G17     208.9          42.3                8.5 +/-    0.96      12.0 +/-    0.96  0.090 / 0.150
G19     210.8          18.5                7.2 +/-    4.45      16.4 +/-    4.45  0.080 / 0.150
G28     330.9          61.7                4.8 +/-    0.66       5.4 +/-    0.66  0.070 / 0.150