PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/30-10:28:00
G02     203.9          32.3                3.5 +/-    2.80       5.8 +/-    2.80  0.110 / 0.190
G06     159.6          68.8                4.7 +/-    0.48       5.0 +/-    0.48  0.240 / 0.320
G12     307.5          16.1                1.6 +/-    2.57       3.9 +/-    2.57  0.040 / 0.030
G17     37.7           47.5                3.2 +/-    1.66       4.2 +/-    1.66  0.040 / 0.020
G19     351.4          66.7                3.0 +/-    0.34       3.2 +/-    0.34  0.060 / 0.080
G24     294.9          40.5                4.4 +/-    5.51       6.4 +/-    5.51  0.050 / 0.080
G28     101.3          32.7                3.8 +/-    1.84       6.4 +/-    1.84  0.030 / 0.030