PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/19-04:43:00
G01     320.0          15.2               -8.4 +/-   34.23     -20.9 +/-   34.23  0.190 / 0.570
G08     260.1          14.8                7.8 +/-    1.41      19.5 +/-    1.41  0.120 / 0.360
G10     74.7           54.8                5.3 +/-    0.31       6.3 +/-    0.31  0.030 / 0.060
G11     305.7          21.7                3.7 +/-    2.55       7.9 +/-    2.55  0.030 / 0.050
G14     282.0          68.1                5.8 +/-    0.99       6.2 +/-    0.99  0.140 / 0.440
G18     307.5          37.8                5.0 +/-    0.90       7.5 +/-    0.90  0.150 / 0.460
G20     94.8           46.4                8.4 +/-    1.38      11.0 +/-    1.38  0.080 / 0.270
G27     226.3          10.8                8.4 +/-    3.22      23.1 +/-    3.22  0.080 / 0.230
G31     174.8          40.4                8.4 +/-    1.00      12.1 +/-    1.00  0.040 / 0.040
G32     5.7            68.6                6.0 +/-    0.30       6.4 +/-    0.30  0.040 / 0.040