PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-09:58:10
G02     201.4          21.1                4.5 +/-    2.59       9.6 +/-    2.59  0.090 / 0.120
G06     169.4          56.5                5.6 +/-    0.48       6.6 +/-    0.48  0.080 / 0.130
G13     225.1          11.6                4.3 +/-    1.75      11.5 +/-    1.75  0.040 / 0.030
G17     27.3           56.1                4.0 +/-    1.17       4.7 +/-    1.17  0.030 / 0.030
G19     318.7          70.1                4.0 +/-    1.33       4.2 +/-    1.33  0.250 / 0.410
G24     306.0          34.2                1.8 +/-    1.57       2.9 +/-    1.57  0.190 / 0.530
G28     89.5           39.6                5.8 +/-    1.08       8.6 +/-    1.08  0.260 / 0.370
G30     158.0          14.0                4.7 +/-    1.57      11.9 +/-    1.57  0.130 / 0.310