PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-09:58:00
G02     199.7          13.5                5.1 +/-    1.90      13.1 +/-    1.90  0.080 / 0.190
G06     171.3          46.9                7.6 +/-    0.62      10.0 +/-    0.62  0.110 / 0.180
G13     230.8          18.1                7.4 +/-    3.71      17.0 +/-    3.71  0.110 / 0.180
G17     11.1           66.1                5.0 +/-    0.67       5.4 +/-    0.67  0.090 / 0.200
G19     304.6          72.4                6.0 +/-    0.68       6.3 +/-    0.68  0.030 / 0.040
G24     314.3          23.0                3.7 +/-    2.50       7.6 +/-    2.50  0.030 / 0.030
G28     72.8           49.5                5.2 +/-    0.66       6.6 +/-    0.66  0.160 / 0.540
G30     156.9          23.3                6.5 +/-    2.15      13.3 +/-    2.15  0.130 / 0.570