PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-03:12:40
G10     294.7          50.9                9.8 +/-    1.96      12.2 +/-    1.96  0.050 / 0.100
G15     46.7           31.4                6.9 +/-    1.26      11.8 +/-    1.26  0.060 / 0.070
G20     332.6          64.1               12.2 +/-    0.65      13.4 +/-    0.65  0.040 / 0.030
G21     87.9           75.8                9.8 +/-    0.67      10.1 +/-    0.67  0.050 / 0.040
G24     98.4           25.7                9.6 +/-    1.13      18.4 +/-    1.13  0.070 / 0.110
G27     302.3          33.4                6.5 +/-    1.27      10.6 +/-    1.27  0.080 / 0.080
G32     209.5          32.0               11.0 +/-    1.54      18.5 +/-    1.54  0.070 / 0.120