PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-19:13:00
G10     260.5          33.4               21.4 +/-   36.96      35.1 +/-   36.96  0.040 / 0.050
G13     46.0           24.3               11.4 +/-    5.10      22.6 +/-    5.10  0.040 / 0.050
G15     66.3           52.4               13.9 +/-    2.59      17.1 +/-    2.59  0.140 / 0.410
G16     290.3          12.4               14.7 +/-    4.74      38.9 +/-    4.74  0.160 / 0.420
G18     289.4          62.6               23.2 +/-   37.72      25.8 +/-   37.72  0.040 / 0.080
G20     49.8           40.3               21.1 +/-   38.57      30.5 +/-   38.57  0.040 / 0.090
G21     356.6          69.5               12.4 +/-    7.36      13.1 +/-    7.36  0.120 / 0.420
G26     262.7          10.7               13.3 +/-    3.89      36.7 +/-    3.89  0.120 / 0.500
G27     320.3          15.3               11.2 +/-    2.91      27.5 +/-    2.91  0.070 / 0.190
G29     164.5          32.0               22.8 +/-   37.08      38.3 +/-   37.08  0.060 / 0.230