PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-14:28:10
G03     189.6          18.6               12.5 +/-    1.89      28.4 +/-    1.89  0.070 / 0.130
G07     292.1          38.3               10.7 +/-    1.12      16.0 +/-    1.12  0.070 / 0.150
G08     142.0          29.1               14.7 +/-    0.65      26.2 +/-    0.65  0.040 / 0.080
G09     320.0          65.3                9.5 +/-    0.99      10.3 +/-    0.99  0.040 / 0.090
G16     42.2           34.9                9.8 +/-    0.56      15.6 +/-    0.56  0.120 / 0.190
G23     124.9          73.3               13.7 +/-    0.93      14.2 +/-    0.93  0.110 / 0.210
G27     96.7           34.6               12.5 +/-    0.96      20.0 +/-    0.96  0.040 / 0.110
G30     275.5          14.3               11.4 +/-    0.79      28.8 +/-    0.79  0.050 / 0.120