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               10.5 +/-    1.20      12.9 +/-    1.20  0.060 / 0.100
G15     46.5           30.6                7.0 +/-    0.60      12.1 +/-    0.60  0.080 / 0.100
G20     310.4          57.5                8.2 +/-    0.99       9.5 +/-    0.99  0.070 / 0.150
G21     94.3           75.0               10.1 +/-    0.42      10.4 +/-    0.42  0.100 / 0.140
G24     96.1           26.4               11.5 +/-    0.73      21.8 +/-    0.73  0.040 / 0.040
G27     300.5          34.2                9.8 +/-    1.37      15.7 +/-    1.37  0.050 / 0.050
G32     210.2          33.9               12.0 +/-    2.23      19.5 +/-    2.23  0.040 / 0.040