PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-04:28:10
G10     266.4          37.7               12.0 +/-    1.55      18.1 +/-    1.55  0.170 / 0.410
G13     42.2           18.9                6.1 +/-    3.16      13.9 +/-    3.16  0.180 / 0.330
G15     60.1           49.6                9.4 +/-    0.64      12.0 +/-    0.64  0.050 / 0.030
G16     278.6          12.3               10.3 +/-    2.40      27.4 +/-    2.40  0.040 / 0.030
G20     321.1          67.1                8.9 +/-    0.80       9.6 +/-    0.80  0.140 / 0.130
G21     359.7          71.2               10.1 +/-    0.43      10.6 +/-    0.43  0.140 / 0.130
G24     120.4          13.9                8.7 +/-    1.79      22.3 +/-    1.79  0.190 / 0.310
G27     318.8          18.6                8.7 +/-    1.96      19.9 +/-    1.96  0.200 / 0.210
G29     168.3          32.5               11.2 +/-    1.01      18.7 +/-    1.01  0.150 / 0.340