PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-00:28:00
G01     124.5          13.8                7.9 +/-    1.53      20.2 +/-    1.53  0.040 / 0.130
G07     62.0           69.0                7.1 +/-    0.32       7.5 +/-    0.32  0.060 / 0.170
G08     49.1           38.6                5.5 +/-    0.44       8.2 +/-    0.44  0.040 / 0.070
G09     178.6          33.6               10.8 +/-    1.97      17.5 +/-    1.97  0.030 / 0.060
G11     117.6          36.5                8.5 +/-    0.69      13.2 +/-    0.69  0.030 / 0.060
G13     320.6          13.5                4.6 +/-    1.82      11.8 +/-    1.82  0.030 / 0.060
G17     200.9          17.2                9.6 +/-    1.24      22.7 +/-    1.24  0.030 / 0.030
G28     282.6          55.0                9.1 +/-    0.95      10.8 +/-    0.95  0.020 / 0.100
G30     344.9          66.4                6.0 +/-    0.62       6.5 +/-    0.62  0.060 / 0.110