PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-07:42:40
G02     204.3          37.0                6.3 +/-    2.18       9.7 +/-    2.18  0.030 / 0.020
G06     158.7          71.1                7.9 +/-    1.10       8.3 +/-    1.10  0.040 / 0.040
G12     308.7          17.1                2.5 +/-    1.78       5.9 +/-    1.78  0.090 / 0.180
G17     40.7           44.8                3.7 +/-    0.52       5.0 +/-    0.52  0.080 / 0.150
G19     1.5            64.7                4.6 +/-    0.56       5.0 +/-    0.56  0.060 / 0.080
G24     289.9          42.4                3.5 +/-    0.61       4.9 +/-    0.61  0.050 / 0.080
G28     104.1          31.2                9.0 +/-    1.17      15.4 +/-    1.17  0.080 / 0.170