PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-16:57:30
G02     225.6          66.0                8.4 +/-    0.91       9.1 +/-    0.91  0.140 / 0.090
G06     44.4           63.9                8.1 +/-    0.52       8.9 +/-    0.52  0.100 / 0.080
G12     322.2          48.9                7.4 +/-    0.95       9.5 +/-    0.95  0.030 / 0.050
G17     65.2           25.9                7.3 +/-    2.87      14.0 +/-    2.87  0.040 / 0.040
G19     45.7           46.4                7.8 +/-    1.00      10.3 +/-    1.00  0.040 / 0.030
G24     251.9          38.7               10.1 +/-    2.54      15.0 +/-    2.54  0.040 / 0.030