PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/30-10:12:40
G02     202.2          25.5                2.5 +/-    2.02       4.7 +/-    2.02  0.090 / 0.100
G06     166.6          61.5                5.3 +/-    0.55       5.9 +/-    0.55  0.070 / 0.090
G12     303.7          11.1               -4.2 +/-   14.86     -11.5 +/-   14.86  0.150 / 0.320
G17     31.6           52.6                2.7 +/-    0.78       3.3 +/-    0.78  0.120 / 0.330
G19     332.7          69.3                4.0 +/-    0.75       4.2 +/-    0.75  0.030 / 0.050
G24     302.1          37.0                2.3 +/-    2.28       3.5 +/-    2.28  0.040 / 0.040
G28     94.4           37.0                3.7 +/-    0.69       5.6 +/-    0.69  0.040 / 0.030