PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-18:27:50
G01     80.4           33.2               15.7 +/-    0.93      25.8 +/-    0.93  0.160 / 0.220
G07     132.3          38.6               18.6 +/-    0.49      27.7 +/-    0.49  0.180 / 0.280
G11     60.6           36.2               17.0 +/-    1.04      26.4 +/-    1.04  0.040 / 0.060
G13     284.7          37.6               19.0 +/-    0.83      28.8 +/-    0.83  0.040 / 0.070
G15     309.9          12.7               16.4 +/-    1.50      43.1 +/-    1.50  0.030 / 0.030
G17     222.1          59.0               19.2 +/-    1.88      22.0 +/-    1.88  0.030 / 0.030
G18     56.1           21.8               16.9 +/-    4.66      35.7 +/-    4.66  0.090 / 0.100
G19     219.0          32.9               18.2 +/-    1.58      30.0 +/-    1.58  0.070 / 0.100
G28     5.3            60.8               16.1 +/-    1.31      18.2 +/-    1.31  0.210 / 0.240
G30     124.7          68.9               17.7 +/-    0.65      18.8 +/-    0.65  0.330 / 0.210