PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-04:27:50
G01     113.6          21.5                7.2 +/-    1.30      15.2 +/-    1.30  0.080 / 0.130
G07     96.8           61.2                6.7 +/-    0.66       7.5 +/-    0.66  0.100 / 0.170
G08     42.4           23.7                4.7 +/-    1.72       9.5 +/-    1.72  0.030 / 0.040
G09     174.3          17.9                6.8 +/-    1.53      15.8 +/-    1.53  0.030 / 0.030
G11     96.2           41.8                7.4 +/-    0.72      10.5 +/-    0.72  0.030 / 0.020
G13     314.2          24.4                3.4 +/-    1.68       6.6 +/-    1.68  0.030 / 0.030
G17     202.2          33.3                7.5 +/-    1.10      12.2 +/-    1.10  0.080 / 0.100
G28     300.6          58.4                5.2 +/-    1.14       6.0 +/-    1.14  0.080 / 0.060
G30     354.6          72.7                6.6 +/-    0.91       6.8 +/-    0.91  0.040 / 0.050