PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-05:57:50
G08     267.4          17.7                5.1 +/-    1.06      11.9 +/-    1.06  0.190 / 0.310
G10     62.9           58.0                3.5 +/-    0.32       4.0 +/-    0.32  0.120 / 0.350
G11     311.1          17.5                2.2 +/-    9.20       5.0 +/-    9.20  0.130 / 0.170
G14     264.6          63.9                4.8 +/-    1.06       5.3 +/-    1.06  0.140 / 0.190
G18     312.1          32.1                3.0 +/-    2.89       5.1 +/-    2.89  0.040 / 0.060
G20     94.6           39.1                4.0 +/-    0.82       5.9 +/-    0.82  0.060 / 0.060
G21     155.1          15.2                5.2 +/-    1.56      12.8 +/-    1.56  0.120 / 0.290
G27     231.1          15.2                6.0 +/-    1.14      14.8 +/-    1.14  0.110 / 0.260
G31     176.4          33.2                5.1 +/-    1.55       8.4 +/-    1.55  0.110 / 0.260
G32     348.9          73.1                4.3 +/-    0.57       4.5 +/-    0.57  0.130 / 0.290