PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-23:27:50
G01     52.6           27.1                7.9 +/-    1.53      14.8 +/-    1.53  0.100 / 0.100
G06     178.7          22.0               11.8 +/-    0.97      24.8 +/-    0.97  0.090 / 0.110
G07     145.4          15.5               11.3 +/-    1.18      27.8 +/-    1.18  0.040 / 0.060
G11     46.1           19.4                7.6 +/-    1.05      16.9 +/-    1.05  0.040 / 0.060
G13     254.2          31.8               10.4 +/-    1.36      17.6 +/-    1.36  0.040 / 0.060
G15     286.0          16.3                9.4 +/-    1.54      22.6 +/-    1.54  0.030 / 0.060
G17     281.8          76.8                9.6 +/-    0.58       9.8 +/-    0.58  0.030 / 0.040
G19     242.3          57.2               11.9 +/-    0.82      13.9 +/-    0.82  0.030 / 0.040
G28     48.9           53.7                8.8 +/-    0.53      10.6 +/-    0.53  0.080 / 0.280
G30     147.7          41.8               12.5 +/-    0.76      17.7 +/-    0.76  0.080 / 0.240