PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-03:57:30
G02     199.1          18.7                5.6 +/-    1.58      12.8 +/-    1.58  0.050 / 0.090
G06     175.3          47.3                4.1 +/-    1.11       5.3 +/-    1.11  0.040 / 0.090
G13     231.0          15.8                5.0 +/-    2.86      12.1 +/-    2.86  0.030 / 0.040
G17     15.0           63.8                0.8 +/-    0.58       0.9 +/-    0.58  0.030 / 0.050
G19     310.9          71.6                1.2 +/-    0.54       1.2 +/-    0.54  0.090 / 0.250
G24     313.0          25.9                2.8 +/-    3.12       5.5 +/-    3.12  0.090 / 0.250
G28     84.0           41.4                3.3 +/-    0.97       4.7 +/-    0.97  0.070 / 0.150
G30     155.3          14.8                5.8 +/-    3.34      14.5 +/-    3.34  0.080 / 0.150