PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-10:27:50
G02     200.9          23.0                3.7 +/-    1.15       7.6 +/-    1.15  0.210 / 0.400
G06     167.0          57.9                6.7 +/-    1.06       7.7 +/-    1.06  0.120 / 0.300
G13     223.6          11.4                3.6 +/-    3.62       9.8 +/-    3.62  0.030 / 0.040
G17     23.7           58.4                5.7 +/-    0.39       6.6 +/-    0.39  0.030 / 0.040
G19     339.0          70.4                5.2 +/-    0.57       5.5 +/-    0.57  0.120 / 0.400
G28     85.8           44.3                6.2 +/-    0.97       8.4 +/-    0.97  0.130 / 0.390
G30     158.2          13.8                6.3 +/-    3.57      16.1 +/-    3.57  0.090 / 0.160