PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-19:28:00
G01     318.6          20.4                9.0 +/-    1.42      19.7 +/-    1.42  0.040 / 0.050
G08     257.4          13.5               11.2 +/-    3.52      28.9 +/-    3.52  0.040 / 0.050
G10     81.1           51.2                8.0 +/-    0.45      10.0 +/-    0.45  0.040 / 0.040
G11     305.8          20.4               10.5 +/-    4.96      23.0 +/-    4.96  0.040 / 0.040
G14     284.1          67.8                9.4 +/-    0.91      10.1 +/-    0.91  0.210 / 0.270
G20     106.7          26.4               10.5 +/-    1.18      19.9 +/-    1.18  0.210 / 0.310
G31     175.6          41.9               11.6 +/-    1.33      16.3 +/-    1.33  0.060 / 0.070
G32     11.1           66.7                8.0 +/-    0.66       8.6 +/-    0.66  0.060 / 0.070