PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/17-11:27:20
G02     205.0          34.8                5.4 +/-    1.10       8.5 +/-    1.10  0.050 / 0.080
G06     153.3          72.1                5.5 +/-    0.92       5.7 +/-    0.92  0.060 / 0.100
G12     309.4          18.9                2.7 +/-    1.54       6.2 +/-    1.54  0.100 / 0.190
G17     40.2           45.4                3.7 +/-    0.50       5.0 +/-    0.50  0.130 / 0.200
G19     357.6          65.3                3.5 +/-    1.17       3.8 +/-    1.17  0.040 / 0.040
G24     291.5          41.5                4.2 +/-    1.20       5.9 +/-    1.20  0.040 / 0.040
G28     104.4          30.5                7.4 +/-    0.66      12.8 +/-    0.66  0.110 / 0.160