PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-03:57:30
G10     252.9          28.4               13.9 +/-    1.60      25.2 +/-    1.60  0.130 / 0.290
G13     51.4           28.5                7.6 +/-    1.00      13.8 +/-    1.00  0.120 / 0.350
G15     81.8           57.1               11.1 +/-    1.20      12.9 +/-    1.20  0.040 / 0.040
G16     292.1          15.5               10.0 +/-    2.03      24.7 +/-    2.03  0.040 / 0.040
G20     287.5          62.7               10.3 +/-    0.67      11.5 +/-    0.67  0.100 / 0.130
G21     336.2          61.6               10.2 +/-    0.71      11.5 +/-    0.71  0.090 / 0.180
G26     263.9          14.6               12.9 +/-    1.10      32.4 +/-    1.10  0.030 / 0.030
G29     165.9          47.7               13.3 +/-    0.54      17.2 +/-    0.54  0.030 / 0.030