PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-09:58:10
G01     38.4           12.3                2.1 +/-    4.31       5.5 +/-    4.31  0.070 / 0.140
G06     172.3          43.4                6.5 +/-    1.01       9.0 +/-    1.01  0.080 / 0.140
G13     233.4          20.3                5.9 +/-    2.13      12.9 +/-    2.13  0.190 / 0.390
G15     267.1          10.9                4.2 +/-    2.16      11.6 +/-    2.16  0.110 / 0.290
G17     5.6            68.7                5.8 +/-    0.88       6.2 +/-    0.88  0.040 / 0.030
G19     292.6          72.0                5.7 +/-    0.40       5.9 +/-    0.40  0.030 / 0.030
G28     68.2           50.9                5.0 +/-    0.96       6.3 +/-    0.96  0.040 / 0.060
G30     156.2          26.4                5.5 +/-    1.69      10.3 +/-    1.69  0.040 / 0.060