PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-12:27:50
G03     230.1          68.9                6.5 +/-    0.63       6.9 +/-    0.63  0.060 / 0.040
G07     248.1          11.6                0.4 +/-   14.54       1.2 +/-   14.54  0.050 / 0.050
G09     302.1          16.0                3.3 +/-    2.36       7.9 +/-    2.36  0.130 / 0.230
G14     98.6           14.8                5.1 +/-    1.91      12.7 +/-    1.91  0.160 / 0.220
G16     133.5          56.8                8.0 +/-    0.68       9.4 +/-    0.68  0.040 / 0.050
G22     192.2          54.4                5.7 +/-    0.96       6.8 +/-    0.96  0.040 / 0.050
G23     319.0          49.0                6.1 +/-    0.63       7.7 +/-    0.63  0.130 / 0.350
G26     73.7           53.4                6.1 +/-    0.67       7.4 +/-    0.67  0.130 / 0.320
G31     51.7           20.4                5.5 +/-    3.42      11.9 +/-    3.42  0.140 / 0.290