PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-18:13:10
G02     201.7          25.3               13.6 +/-    2.03      26.4 +/-    2.03  0.210 / 0.330
G06     165.0          61.5               12.4 +/-    0.62      13.9 +/-    0.62  0.230 / 0.340
G12     303.7          11.6                6.4 +/-   17.89      17.2 +/-   17.89  0.140 / 0.400
G17     27.2           56.0                9.0 +/-    0.64      10.6 +/-    0.64  0.130 / 0.350
G19     332.5          69.5                9.8 +/-    0.60      10.4 +/-    0.60  0.110 / 0.140
G24     305.0          34.3               11.2 +/-    1.17      18.0 +/-    1.17  0.070 / 0.120
G28     94.2           36.4                9.9 +/-    0.53      15.3 +/-    0.53  0.100 / 0.100
G30     157.9          9.8                14.2 +/-    1.56      39.7 +/-    1.56  0.080 / 0.110