PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-10:27:50
G01     108.6          24.7                5.3 +/-    0.69      10.4 +/-    0.69  0.030 / 0.030
G07     104.9          58.8                7.4 +/-    0.65       8.5 +/-    0.65  0.030 / 0.050
G08     41.8           20.0                3.0 +/-    0.84       6.6 +/-    0.84  0.030 / 0.030
G09     172.4          11.4                3.6 +/-    1.24       9.8 +/-    1.24  0.030 / 0.030
G11     89.5           42.5                7.1 +/-    0.45       9.9 +/-    0.45  0.070 / 0.170
G13     310.6          28.0                4.3 +/-    0.81       7.9 +/-    0.81  0.070 / 0.150
G17     204.7          37.7                5.8 +/-    2.14       8.7 +/-    2.14  0.080 / 0.160
G18     80.7           23.8                4.9 +/-    0.78       9.8 +/-    0.78  0.060 / 0.160
G28     313.1          60.4                4.9 +/-    0.58       5.6 +/-    0.58  0.060 / 0.190
G30     9.9            76.7                5.7 +/-    0.43       5.9 +/-    0.43  0.060 / 0.200