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               11.0 +/-    2.89      23.1 +/-    2.89  0.130 / 0.470
G13     60.0           33.1                9.0 +/-    1.96      14.8 +/-    1.96  0.120 / 0.400
G15     102.9          58.1               10.2 +/-    0.83      11.8 +/-    0.83  0.040 / 0.040
G16     301.0          15.8                5.3 +/-    2.91      12.9 +/-    2.91  0.050 / 0.050
G20     259.1          42.3               11.9 +/-    3.21      16.7 +/-    3.21  0.070 / 0.120
G21     325.3          55.1                8.7 +/-    0.49      10.4 +/-    0.49  0.100 / 0.150
G26     272.6          18.1                8.7 +/-    1.65      20.1 +/-    1.65  0.030 / 0.030
G29     163.3          58.4               10.5 +/-    0.76      12.1 +/-    0.76  0.030 / 0.030