PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-09:12:40
G01     220.2          10.9                6.1 +/-    0.99      16.6 +/-    0.99  0.040 / 0.040
G03     261.2          69.9                5.5 +/-    0.75       5.9 +/-    0.75  0.030 / 0.050
G09     300.0          14.8                4.0 +/-    1.40      10.0 +/-    1.40  0.040 / 0.040
G14     93.3           20.9                4.0 +/-    2.11       8.6 +/-    2.11  0.030 / 0.040
G16     133.0          54.3                6.3 +/-    0.34       7.6 +/-    0.34  0.170 / 0.480
G22     199.3          61.7                6.0 +/-    0.26       6.8 +/-    0.26  0.170 / 0.360
G23     315.1          45.2                5.3 +/-    1.09       7.1 +/-    1.09  0.130 / 0.260
G26     77.3           52.7                6.0 +/-    0.79       7.3 +/-    0.79  0.110 / 0.240
G31     49.7           22.7                2.6 +/-    2.51       5.4 +/-    2.51  0.040 / 0.070