PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-02:28:10
G01     108.9          24.6                4.1 +/-    0.89       8.1 +/-    0.89  0.040 / 0.060
G07     103.8          59.6                4.1 +/-    0.51       4.7 +/-    0.51  0.040 / 0.060
G08     42.3           22.8                1.3 +/-    1.10       2.7 +/-    1.10  0.030 / 0.040
G09     175.9          16.1                6.0 +/-    1.05      14.6 +/-    1.05  0.030 / 0.040
G11     93.9           42.7                5.3 +/-    0.59       7.4 +/-    0.59  0.060 / 0.130
G13     311.7          26.6                3.8 +/-    2.18       7.1 +/-    2.18  0.060 / 0.130
G17     205.3          35.8                5.3 +/-    0.95       8.2 +/-    0.95  0.040 / 0.090
G19     208.5          12.0                5.4 +/-    7.71      14.4 +/-    7.71  0.050 / 0.080
G28     315.7          60.8                3.8 +/-    0.62       4.3 +/-    0.62  0.110 / 0.180
G30     32.0           77.5                3.0 +/-    0.81       3.1 +/-    0.81  0.170 / 0.180