PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-16:42:40
G01     319.4          16.7                6.0 +/-    1.99      14.3 +/-    1.99  0.040 / 0.040
G08     260.2          13.8               10.3 +/-    1.26      26.4 +/-    1.26  0.040 / 0.040
G10     77.1           54.4                8.4 +/-    0.79      10.1 +/-    0.79  0.170 / 0.230
G11     305.9          21.1                6.6 +/-    2.26      14.3 +/-    2.26  0.130 / 0.180
G14     290.5          69.7                8.8 +/-    0.57       9.4 +/-    0.57  0.040 / 0.050
G31     176.5          40.4               12.7 +/-    0.80      18.4 +/-    0.80  0.040 / 0.050
G32     5.1            68.3                9.6 +/-    0.74      10.2 +/-    0.74  0.030 / 0.040