PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-03:28:10
G01     77.5           33.3                3.3 +/-    1.19       5.4 +/-    1.19  0.040 / 0.040
G07     133.9          36.1                4.7 +/-    0.84       7.4 +/-    0.84  0.040 / 0.040
G11     59.5           35.4                3.6 +/-    0.67       5.6 +/-    0.67  0.120 / 0.290
G13     282.8          37.3                5.2 +/-    1.37       8.0 +/-    1.37  0.080 / 0.240
G15     306.7          14.5                1.6 +/-    3.77       4.0 +/-    3.77  0.040 / 0.030
G17     225.1          63.7                5.6 +/-    1.29       6.2 +/-    1.29  0.040 / 0.030
G19     220.4          37.7                5.4 +/-    1.88       8.1 +/-    1.88  0.040 / 0.050
G28     10.9           60.2                1.9 +/-    1.04       2.1 +/-    1.04  0.040 / 0.060
G30     128.7          63.7                4.4 +/-    0.52       4.9 +/-    0.52  0.060 / 0.080