PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-17:42:50
G01     110.0          24.0               12.7 +/-    2.27      25.4 +/-    2.27  0.060 / 0.120
G07     101.7          60.8               12.4 +/-    1.10      14.0 +/-    1.10  0.070 / 0.130
G08     42.6           24.6                9.4 +/-    1.60      18.6 +/-    1.60  0.040 / 0.040
G09     175.4          16.2               15.3 +/-    2.80      37.1 +/-    2.80  0.040 / 0.040
G11     94.0           42.7               13.1 +/-    0.85      18.3 +/-    0.85  0.030 / 0.030
G13     311.9          26.6               12.8 +/-    1.99      24.1 +/-    1.99  0.030 / 0.030
G17     205.5          32.3               14.6 +/-    1.44      24.4 +/-    1.44  0.040 / 0.080
G18     83.9           23.8               10.7 +/-    0.53      21.5 +/-    0.53  0.040 / 0.080
G28     312.3          60.5               12.5 +/-    0.68      14.1 +/-    0.68  0.070 / 0.190
G30     14.2           76.6               13.0 +/-    0.71      13.3 +/-    0.71  0.070 / 0.150