PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/13-21:42:50
G01     264.3          39.8               10.3 +/-    2.11      15.1 +/-    2.11  0.090 / 0.070
G03     316.3          33.7                6.7 +/-    1.51      10.9 +/-    1.51  0.060 / 0.050
G10     132.4          13.6               11.4 +/-    1.93      29.3 +/-    1.93  0.070 / 0.180
G11     246.7          18.4               10.3 +/-    1.58      23.6 +/-    1.58  0.100 / 0.270
G14     49.1           47.0                7.4 +/-    0.72       9.8 +/-    0.72  0.020 / 0.030
G22     312.8          55.5                7.5 +/-    1.78       8.9 +/-    1.78  0.030 / 0.030
G25     47.8           15.0                7.8 +/-    3.60      19.3 +/-    3.60  0.080 / 0.070
G26     146.7          28.2               10.9 +/-    0.57      19.8 +/-    0.57  0.080 / 0.090
G31     47.8           71.5                8.9 +/-    0.39       9.4 +/-    0.39  0.080 / 0.060
G32     67.9           30.3                7.2 +/-    2.40      12.6 +/-    2.40  0.080 / 0.060