PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-05:27:20
G10     300.0          52.6                8.1 +/-    1.63      10.0 +/-    1.63  0.040 / 0.030
G15     45.9           27.0                4.5 +/-    1.49       8.4 +/-    1.49  0.040 / 0.030
G20     25.2           61.7                7.2 +/-    1.05       8.1 +/-    1.05  0.070 / 0.080
G21     101.1          73.5                9.1 +/-    0.61       9.5 +/-    0.61  0.140 / 0.090
G24     95.0           27.1                6.6 +/-    1.36      12.3 +/-    1.36  0.070 / 0.090
G27     298.1          35.1                7.9 +/-    1.01      12.5 +/-    1.01  0.070 / 0.100
G32     211.1          35.7               10.9 +/-    1.44      17.0 +/-    1.44  0.090 / 0.210