PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/08-08:58:00
G01     62.5           30.6                5.5 +/-    1.05       9.5 +/-    1.05  0.040 / 0.040
G06     179.8          12.0                1.6 +/-   16.36       4.3 +/-   16.36  0.030 / 0.040
G07     140.0          24.6                4.6 +/-    1.33       9.1 +/-    1.33  0.140 / 0.290
G11     50.6           28.9                4.3 +/-    2.09       7.7 +/-    2.09  0.130 / 0.280
G13     265.6          37.5                6.9 +/-    2.30      10.5 +/-    2.30  0.040 / 0.060
G15     296.8          16.2                5.4 +/-    1.56      13.0 +/-    1.56  0.040 / 0.060
G17     242.9          72.7                6.7 +/-    0.40       7.0 +/-    0.40  0.030 / 0.040
G19     228.1          49.5                6.9 +/-    2.80       8.8 +/-    2.80  0.030 / 0.030
G28     15.0           60.6                5.6 +/-    2.25       6.3 +/-    2.25  0.240 / 0.730
G30     141.6          58.7                7.9 +/-    0.53       9.1 +/-    0.53  0.380 / 0.880