PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/23-17:42:40
G02     62.7           31.6               11.6 +/-    0.88      19.6 +/-    0.88  0.030 / 0.040
G05     52.7           58.8               11.3 +/-    0.42      12.9 +/-    0.42  0.030 / 0.050
G12     181.6          24.2               14.8 +/-    2.75      29.4 +/-    2.75  0.120 / 0.280
G13     122.8          19.3               15.6 +/-    1.99      34.8 +/-    1.99  0.100 / 0.350
G15     164.5          14.8               16.2 +/-    0.78      40.5 +/-    0.78  0.090 / 0.180
G21     276.5          21.1               11.2 +/-    2.42      24.1 +/-    2.42  0.070 / 0.200
G25     225.0          46.5               15.0 +/-    1.30      19.8 +/-    1.30  0.050 / 0.070
G29     332.0          60.0               11.8 +/-    0.61      13.4 +/-    0.61  0.050 / 0.090