PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-15:27:40
G10     265.1          37.5                8.6 +/-    1.26      13.1 +/-    1.26  0.040 / 0.050
G13     42.7           19.3                5.3 +/-    2.07      12.0 +/-    2.07  0.040 / 0.050
G15     62.5           51.5                8.4 +/-    0.46      10.4 +/-    0.46  0.090 / 0.080
G16     282.2          12.6                6.8 +/-    2.10      17.9 +/-    2.10  0.060 / 0.110
G20     294.2          59.5                8.0 +/-    1.15       9.1 +/-    1.15  0.150 / 0.390
G21     7.1            71.8                7.8 +/-    0.84       8.2 +/-    0.84  0.160 / 0.460
G24     117.6          13.6               12.6 +/-    2.05      32.3 +/-    2.05  0.050 / 0.090
G27     320.4          15.3                3.2 +/-    2.28       7.8 +/-    2.28  0.050 / 0.090
G29     166.7          32.0               12.9 +/-    0.89      21.7 +/-    0.89  0.180 / 0.380