PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-11:57:50
G02     224.1          68.9                4.3 +/-    0.70       4.6 +/-    0.70  0.050 / 0.070
G06     46.0           70.8                3.8 +/-    0.43       4.0 +/-    0.43  0.050 / 0.070
G12     320.4          42.3                2.9 +/-    0.95       4.1 +/-    0.95  0.070 / 0.080
G17     65.3           25.8                2.1 +/-    4.64       4.1 +/-    4.64  0.050 / 0.090
G19     50.1           42.7                2.3 +/-    0.96       3.2 +/-    0.96  0.040 / 0.040
G24     257.1          39.1                3.7 +/-    2.66       5.4 +/-    2.66  0.030 / 0.040