PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/30-20:12:40
G02     234.2          72.4                9.7 +/-    0.33      10.1 +/-    0.33  0.080 / 0.110
G05     172.5          14.0               11.4 +/-    2.10      28.9 +/-    2.10  0.060 / 0.110
G06     41.7           59.6                9.7 +/-    0.41      11.1 +/-    0.41  0.080 / 0.300
G12     322.2          51.7                8.4 +/-    1.17      10.3 +/-    1.17  0.120 / 0.260
G17     68.3           24.7                9.7 +/-    1.00      19.0 +/-    1.00  0.040 / 0.080
G19     52.2           42.4                8.8 +/-    0.59      12.4 +/-    0.59  0.040 / 0.060
G24     247.1          36.3               11.7 +/-    0.96      18.2 +/-    0.96  0.040 / 0.050