PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-19:27:50
G01     309.3          31.9                8.8 +/-    1.20      14.8 +/-    1.20  0.090 / 0.150
G10     103.6          41.0               10.0 +/-    0.55      14.2 +/-    0.55  0.090 / 0.150
G11     282.9          28.4                7.8 +/-    0.56      14.2 +/-    0.56  0.140 / 0.180
G14     352.9          67.9                7.0 +/-    0.57       7.5 +/-    0.57  0.130 / 0.140
G18     276.9          51.2               14.7 +/-    1.91      18.3 +/-    1.91  0.050 / 0.060
G20     119.0          15.8               10.5 +/-    1.67      25.6 +/-    1.67  0.040 / 0.040
G22     308.9          23.5                8.0 +/-    0.95      16.1 +/-    0.95  0.080 / 0.150
G25     78.6           14.7                7.4 +/-    2.73      18.7 +/-    2.73  0.090 / 0.110
G31     174.0          59.3               11.2 +/-    0.58      12.8 +/-    0.58  0.030 / 0.040
G32     32.5           54.9                7.9 +/-    0.95       9.4 +/-    0.95  0.040 / 0.040