PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-01:42:50
G10     245.3          22.0               10.9 +/-    1.36      22.9 +/-    1.36  0.040 / 0.060
G13     60.0           33.1                8.6 +/-    0.69      14.2 +/-    0.69  0.060 / 0.060
G15     102.9          58.1                9.8 +/-    0.33      11.3 +/-    0.33  0.110 / 0.670
G16     301.0          15.8                4.5 +/-    2.40      10.9 +/-    2.40  0.110 / 0.660
G20     259.1          42.3                9.8 +/-    0.90      13.8 +/-    0.90  0.030 / 0.040
G21     325.3          55.1                8.7 +/-    0.86      10.3 +/-    0.86  0.030 / 0.040
G26     272.6          18.1                7.5 +/-    0.59      17.3 +/-    0.59  0.080 / 0.230
G29     163.3          58.4                9.4 +/-    0.85      10.9 +/-    0.85  0.100 / 0.230