PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-15:58:00
G01     97.6           29.7               10.9 +/-    1.08      19.2 +/-    1.08  0.030 / 0.050
G07     118.9          51.3               12.1 +/-    0.33      15.0 +/-    0.33  0.030 / 0.060
G08     41.9           13.2                7.4 +/-    1.36      19.2 +/-    1.36  0.040 / 0.030
G11     76.6           41.8               11.1 +/-    1.14      15.7 +/-    1.14  0.040 / 0.040
G13     301.5          33.6               10.6 +/-    1.01      17.3 +/-    1.01  0.080 / 0.110
G17     210.5          46.0               12.2 +/-    1.98      16.2 +/-    1.98  0.080 / 0.140
G18     70.5           24.7               10.7 +/-    0.92      21.1 +/-    0.92  0.040 / 0.090
G19     212.2          18.9               11.0 +/-    2.30      24.7 +/-    2.30  0.040 / 0.090
G28     336.1          61.8                9.5 +/-    0.59      10.7 +/-    0.59  0.050 / 0.060
G30     72.7           79.6               10.8 +/-    0.67      11.0 +/-    0.67  0.040 / 0.080