PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-08:58:10
G02     204.3          35.5                6.9 +/-    1.64      10.8 +/-    1.64  0.100 / 0.240
G06     157.9          70.7                7.3 +/-    1.10       7.7 +/-    1.10  0.090 / 0.190
G12     308.5          17.0                2.9 +/-    1.76       6.8 +/-    1.76  0.060 / 0.090
G17     40.0           45.5                3.6 +/-    0.57       4.9 +/-    0.57  0.050 / 0.070
G19     358.5          65.3                3.7 +/-    1.03       4.0 +/-    1.03  0.040 / 0.050
G24     291.3          41.9                4.0 +/-    1.24       5.6 +/-    1.24  0.040 / 0.060
G28     103.4          31.4                7.5 +/-    1.28      12.7 +/-    1.28  0.120 / 0.110