PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-18:27:30
G10     249.4          26.1               10.4 +/-    2.33      19.8 +/-    2.33  0.040 / 0.060
G13     54.7           30.4               10.3 +/-    1.79      17.9 +/-    1.79  0.040 / 0.040
G15     96.3           59.5               12.0 +/-    0.43      13.7 +/-    0.43  0.150 / 0.650
G16     297.0          15.6                9.9 +/-    3.21      24.3 +/-    3.21  0.180 / 0.580
G20     267.9          49.9                9.7 +/-    0.82      12.3 +/-    0.82  0.050 / 0.140
G21     333.3          59.7                9.7 +/-    0.91      11.0 +/-    0.91  0.060 / 0.170
G26     269.7          16.0               11.5 +/-    2.26      27.9 +/-    2.26  0.030 / 0.030
G29     164.0          51.7               12.1 +/-    1.20      15.0 +/-    1.20  0.030 / 0.040