PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-15:43:10
G01     304.2          35.0                6.8 +/-    1.44      10.8 +/-    1.44  0.100 / 0.090
G03     307.9          10.9              -13.5 +/-   22.17     -36.9 +/-   22.17  0.090 / 0.120
G10     109.3          38.1                7.4 +/-    0.51      11.1 +/-    0.51  0.040 / 0.050
G11     281.4          27.1                8.6 +/-    1.43      15.9 +/-    1.43  0.050 / 0.040
G14     359.8          65.9                5.4 +/-    0.30       5.8 +/-    0.30  0.020 / 0.030
G22     311.2          30.1                5.7 +/-    1.19      10.0 +/-    1.19  0.020 / 0.020
G25     79.6           17.6                7.9 +/-    2.03      18.4 +/-    2.03  0.070 / 0.140
G31     161.1          69.2                8.0 +/-    0.46       8.5 +/-    0.46  0.100 / 0.110
G32     40.4           49.5                5.2 +/-    1.16       6.6 +/-    1.16  0.040 / 0.060