PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-20:58:00
G01     258.8          38.7                9.8 +/-    1.46      14.5 +/-    1.46  0.150 / 0.350
G03     316.6          37.3                7.7 +/-    0.81      11.7 +/-    0.81  0.100 / 0.310
G11     241.2          15.2                9.5 +/-    3.57      23.5 +/-    3.57  0.060 / 0.080
G14     53.7           44.3                8.3 +/-    0.96      11.3 +/-    0.96  0.050 / 0.120
G18     222.3          31.5               10.4 +/-    1.34      17.6 +/-    1.34  0.060 / 0.090
G22     310.7          59.6                7.2 +/-    1.51       8.2 +/-    1.51  0.070 / 0.090
G23     281.0          13.8               -0.9 +/-    4.51      -2.3 +/-    4.51  0.050 / 0.030
G26     144.2          31.7              -15.1 +/-   34.30     -25.5 +/-   34.30  0.060 / 0.040
G31     44.4           69.2                8.1 +/-    0.68       8.6 +/-    0.68  0.060 / 0.090
G32     71.3           27.6                6.2 +/-    2.44      11.5 +/-    2.44  0.040 / 0.090