PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-20:42:30
G01     316.1          24.1                7.4 +/-    2.14      14.8 +/-    2.14  0.060 / 0.040
G10     90.9           48.2                8.8 +/-    0.93      11.4 +/-    0.93  0.060 / 0.030
G11     294.6          26.6                8.9 +/-    1.84      16.8 +/-    1.84  0.130 / 0.170
G14     322.3          71.2                7.7 +/-    0.60       8.1 +/-    0.60  0.140 / 0.190
G20     111.5          23.6               10.4 +/-    0.59      21.0 +/-    0.59  0.100 / 0.340
G22     304.3          15.1                6.9 +/-    2.01      17.1 +/-    2.01  0.110 / 0.270
G25     89.9           11.3               11.4 +/-    2.93      30.9 +/-    2.93  0.030 / 0.030
G31     176.1          48.6                9.7 +/-    1.26      12.4 +/-    1.26  0.050 / 0.040
G32     19.9           62.1                7.6 +/-    0.66       8.5 +/-    0.66  0.180 / 0.310