PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-02:57:50
G10     276.3          43.2               10.8 +/-    0.67      15.0 +/-    0.67  0.040 / 0.040
G13     38.8           11.9                7.7 +/-    2.31      20.6 +/-    2.31  0.040 / 0.040
G15     52.8           43.6                7.4 +/-    1.18      10.2 +/-    1.18  0.070 / 0.140
G20     307.0          61.2               11.4 +/-    0.79      12.8 +/-    0.79  0.070 / 0.160
G21     25.0           76.0               10.9 +/-    0.54      11.2 +/-    0.54  0.040 / 0.060
G24     112.4          18.9                9.8 +/-    1.66      22.2 +/-    1.66  0.050 / 0.080
G27     314.2          25.0                9.3 +/-    1.70      18.1 +/-    1.70  0.050 / 0.180
G29     168.9          23.6               10.4 +/-    3.95      21.0 +/-    3.95  0.070 / 0.140
G32     205.3          18.3               13.9 +/-    1.85      31.9 +/-    1.85  0.100 / 0.240