PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-01:42:20
G10     297.5          51.9                8.8 +/-    2.14      10.8 +/-    2.14  0.060 / 0.090
G15     46.5           30.6                6.2 +/-    0.92      10.8 +/-    0.92  0.080 / 0.080
G20     310.4          57.5                9.2 +/-    0.53      10.7 +/-    0.53  0.040 / 0.030
G21     94.3           75.0                9.8 +/-    0.44      10.1 +/-    0.44  0.040 / 0.040
G24     96.1           26.4                9.4 +/-    1.11      17.7 +/-    1.11  0.080 / 0.100
G27     300.5          34.2                6.8 +/-    2.56      11.0 +/-    2.56  0.080 / 0.100
G32     210.2          33.9               11.6 +/-    2.20      18.7 +/-    2.20  0.060 / 0.100