PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/16-19:43:10
G01     294.2          39.7                2.1 +/-    3.07       3.1 +/-    3.07  0.060 / 0.100
G03     310.9          14.7                6.2 +/-    2.24      15.6 +/-    2.24  0.080 / 0.100
G10     117.5          30.0                9.0 +/-    1.55      15.8 +/-    1.55  0.110 / 0.180
G11     266.3          26.6                7.4 +/-    1.42      14.0 +/-    1.42  0.110 / 0.260
G14     21.2           60.0                6.3 +/-    1.01       7.1 +/-    1.01  0.040 / 0.050
G18     251.7          48.9                8.3 +/-    1.67      10.7 +/-    1.67  0.050 / 0.040
G22     313.4          35.7                7.0 +/-    1.11      10.9 +/-    1.11  0.050 / 0.060
G25     63.6           16.4                6.2 +/-    0.91      14.9 +/-    0.91  0.070 / 0.090
G31     157.9          75.3                8.1 +/-    0.69       8.3 +/-    0.69  0.060 / 0.080
G32     47.7           44.6                7.1 +/-    0.64       9.6 +/-    0.64  0.060 / 0.090