PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-04:58:10
G08     263.9          16.5                9.4 +/-    2.21      22.6 +/-    2.21  0.270 / 0.510
G10     68.2           56.7                6.2 +/-    0.63       7.2 +/-    0.63  0.310 / 0.450
G11     308.8          19.5                8.2 +/-    1.34      18.3 +/-    1.34  0.050 / 0.060
G14     271.9          66.1                5.8 +/-    0.66       6.2 +/-    0.66  0.040 / 0.060
G18     310.3          34.7                8.3 +/-    1.20      13.3 +/-    1.20  0.130 / 0.310
G20     92.5           45.7               12.3 +/-    0.51      16.4 +/-    0.51  0.120 / 0.280
G21     155.5          12.5                7.4 +/-    1.29      19.6 +/-    1.29  0.070 / 0.380
G27     229.0          13.3               11.5 +/-    9.66      29.9 +/-    9.66  0.080 / 0.520
G31     175.7          36.2                9.6 +/-    1.01      15.0 +/-    1.01  0.030 / 0.030
G32     356.9          71.3                7.6 +/-    0.41       7.9 +/-    0.41  0.030 / 0.040