PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-16:58:10
G01     122.7          15.3               21.9 +/-    2.79      54.2 +/-    2.79  0.040 / 0.070
G07     68.3           68.5               16.8 +/-    0.63      17.9 +/-    0.63  0.040 / 0.080
G08     47.6           36.7               15.3 +/-    1.03      23.6 +/-    1.03  0.020 / 0.040
G09     177.4          30.1               18.4 +/-    2.19      32.1 +/-    2.19  0.030 / 0.040
G11     112.9          38.1               18.4 +/-    0.70      27.6 +/-    0.70  0.030 / 0.040
G13     319.5          16.0               13.8 +/-    1.50      33.6 +/-    1.50  0.030 / 0.040
G17     201.6          18.1               20.3 +/-    1.20      46.8 +/-    1.20  0.050 / 0.060
G18     98.8           19.2               17.5 +/-    1.22      39.2 +/-    1.22  0.050 / 0.050
G28     285.6          55.7               18.4 +/-    0.95      21.8 +/-    0.95  0.050 / 0.230
G30     341.0          65.5               16.2 +/-    0.68      17.6 +/-    0.68  0.150 / 0.230