PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/13-20:27:50
G01     274.7          41.7                8.2 +/-    3.02      11.7 +/-    3.02  0.050 / 0.060
G03     315.3          26.7                5.3 +/-    1.45       9.9 +/-    1.45  0.050 / 0.060
G10     127.9          18.6                9.5 +/-    1.10      21.7 +/-    1.10  0.050 / 0.060
G11     251.6          21.1                8.8 +/-    1.78      18.8 +/-    1.78  0.040 / 0.050
G14     40.6           51.4                6.3 +/-    1.11       7.8 +/-    1.11  0.130 / 0.320
G18     233.0          40.5                8.7 +/-    1.35      12.5 +/-    1.35  0.150 / 0.430
G22     314.5          48.6                6.0 +/-    1.03       7.8 +/-    1.03  0.140 / 0.160
G25     50.0           14.1                5.3 +/-    2.78      13.4 +/-    2.78  0.090 / 0.120
G31     74.1           79.9                5.9 +/-    0.50       6.0 +/-    0.50  0.050 / 0.070
G32     61.0           35.0                6.5 +/-    1.32      10.4 +/-    1.32  0.050 / 0.060