PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-03:12:40
G01     75.0           33.2                2.5 +/-    1.06       4.1 +/-    1.06  0.040 / 0.040
G07     135.3          34.2                6.1 +/-    1.52       9.8 +/-    1.52  0.040 / 0.040
G11     57.8           34.3                4.2 +/-    1.01       6.8 +/-    1.01  0.060 / 0.030
G13     280.1          37.3                5.8 +/-    2.32       8.9 +/-    2.32  0.030 / 0.040
G15     304.9          15.0                1.4 +/-    2.27       3.6 +/-    2.27  0.050 / 0.100
G17     227.9          65.4                6.4 +/-    1.06       7.0 +/-    1.06  0.060 / 0.080
G19     221.8          39.6                6.2 +/-    1.60       9.1 +/-    1.60  0.080 / 0.180
G28     14.7           59.8                2.9 +/-    0.63       3.3 +/-    0.63  0.070 / 0.180
G30     131.4          61.5                5.3 +/-    0.52       6.0 +/-    0.52  0.060 / 0.080