PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-23:28:10
G01     66.6           32.1               -0.6 +/-   33.75      -1.0 +/-   33.75  0.060 / 0.060
G07     138.8          23.6                1.5 +/-   35.67       3.1 +/-   35.67  0.050 / 0.050
G11     50.5           27.3               -0.5 +/-   32.88      -0.9 +/-   32.88  0.050 / 0.120
G13     269.5          37.6               -0.9 +/-   34.76      -1.4 +/-   34.76  0.070 / 0.300
G15     299.1          16.0                6.0 +/-    3.75      14.6 +/-    3.75  0.040 / 0.050
G17     241.1          74.0               -6.1 +/-   35.14      -6.4 +/-   35.14  0.040 / 0.290
G18     44.2           14.3                5.6 +/-    2.12      14.3 +/-    2.12  0.040 / 0.090
G19     226.1          44.6                0.5 +/-   35.73       0.7 +/-   35.73  0.060 / 0.330
G28     18.5           59.9                7.5 +/-    2.19       8.6 +/-    2.19  0.050 / 0.160
G30     138.9          58.3               -3.0 +/-   34.23      -3.4 +/-   34.23  0.070 / 0.330