PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-02:58:00
G10     298.3          52.1                9.3 +/-    1.42      11.5 +/-    1.42  0.060 / 0.080
G15     46.3           29.3                6.0 +/-    1.15      10.6 +/-    1.15  0.070 / 0.080
G20     331.4          63.6               12.1 +/-    1.23      13.3 +/-    1.23  0.070 / 0.140
G21     96.7           74.5               10.4 +/-    0.83      10.8 +/-    0.83  0.080 / 0.160
G24     95.7           26.6               11.5 +/-    0.73      21.7 +/-    0.73  0.040 / 0.040
G27     299.7          34.5                8.4 +/-    1.30      13.4 +/-    1.30  0.040 / 0.050
G32     210.5          34.5               14.2 +/-    1.68      22.7 +/-    1.68  0.040 / 0.050