PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/16-23:58:00
G01     65.3           32.1               10.0 +/-    1.18      16.7 +/-    1.18  0.050 / 0.060
G06     182.0          10.2              -18.8 +/-   11.26     -52.3 +/-   11.26  0.040 / 0.080
G07     140.1          27.1               13.0 +/-    1.40      24.2 +/-    1.40  0.050 / 0.060
G11     52.1           29.6                8.8 +/-    0.85      15.5 +/-    0.85  0.030 / 0.040
G13     269.1          36.5               11.4 +/-    1.75      17.6 +/-    1.75  0.030 / 0.030
G15     297.8          16.4                9.4 +/-    1.10      22.6 +/-    1.10  0.030 / 0.030
G17     241.3          70.0               10.0 +/-    0.74      10.5 +/-    0.74  0.080 / 0.090
G19     228.2          46.3               10.8 +/-    2.13      14.3 +/-    2.13  0.080 / 0.110
G28     28.8           57.8               10.3 +/-    1.23      11.9 +/-    1.23  0.080 / 0.100
G30     139.5          53.8               11.2 +/-    0.41      13.5 +/-    0.41  0.080 / 0.110