PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-03:42:40
G10     244.3          21.0               15.4 +/-    0.74      33.2 +/-    0.74  0.130 / 0.630
G13     61.5           33.7                8.5 +/-    0.62      13.8 +/-    0.62  0.140 / 0.630
G15     103.3          57.5               10.6 +/-    0.54      12.3 +/-    0.54  0.040 / 0.060
G16     302.4          15.5                9.1 +/-    3.71      22.4 +/-    3.71  0.060 / 0.060
G20     269.6          57.9               13.7 +/-    0.95      15.9 +/-    0.95  0.050 / 0.110
G21     324.2          54.4               11.7 +/-    2.00      14.0 +/-    2.00  0.060 / 0.120
G26     273.9          18.4               13.6 +/-    1.49      31.0 +/-    1.49  0.030 / 0.050
G29     162.8          59.6               11.1 +/-    1.26      12.6 +/-    1.26  0.030 / 0.040