PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-06:42:30
G01     85.4           32.6                4.7 +/-    0.63       7.8 +/-    0.63  0.030 / 0.030
G07     129.2          40.3                6.4 +/-    0.73       9.2 +/-    0.73  0.030 / 0.030
G11     62.5           37.0                3.5 +/-    0.54       5.4 +/-    0.54  0.050 / 0.060
G13     289.4          37.5                3.7 +/-    1.02       5.7 +/-    1.02  0.040 / 0.060
G17     217.1          60.4                7.2 +/-    0.91       8.1 +/-    0.91  0.090 / 0.110
G18     57.3           21.5                1.3 +/-    1.81       2.8 +/-    1.81  0.080 / 0.100
G19     216.5          28.0                5.9 +/-    1.89      10.8 +/-    1.89  0.080 / 0.110
G28     353.3          61.6                3.4 +/-    0.94       3.8 +/-    0.94  0.070 / 0.100
G30     114.2          74.8                6.8 +/-    0.77       7.1 +/-    0.77  0.070 / 0.220