PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-16:42:40
G01     45.3           21.4                6.3 +/-    3.12      13.3 +/-    3.12  0.040 / 0.050
G06     176.3          29.9               10.3 +/-    1.38      18.1 +/-    1.38  0.040 / 0.050
G11     43.5           10.6                6.6 +/-    5.68      18.2 +/-    5.68  0.420 / 0.560
G13     243.8          27.9               12.0 +/-    1.88      22.0 +/-    1.88  0.150 / 0.410
G15     278.0          14.6                9.3 +/-    1.46      23.3 +/-    1.46  0.220 / 0.420
G17     329.5          76.9               10.2 +/-    0.70      10.5 +/-    0.70  0.360 / 0.400
G19     256.8          65.3               10.4 +/-    0.86      11.4 +/-    0.86  0.020 / 0.030
G24     318.4          12.2                3.3 +/-   20.76       8.8 +/-   20.76  0.020 / 0.030
G28     53.0           54.4                9.3 +/-    1.44      11.1 +/-    1.44  0.090 / 0.120
G30     151.4          33.7                9.7 +/-    1.21      15.9 +/-    1.21  0.100 / 0.150