PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-21:13:00
G03     191.9          26.6                9.5 +/-    3.04      17.9 +/-    3.04  0.240 / 0.310
G07     282.8          32.8                7.1 +/-    2.12      11.8 +/-    2.12  0.200 / 0.400
G08     148.4          21.0               10.6 +/-    1.91      22.7 +/-    1.91  0.120 / 0.220
G09     320.2          54.0                8.4 +/-    0.99      10.1 +/-    0.99  0.110 / 0.160
G16     46.0           47.0                7.5 +/-    0.78       9.9 +/-    0.78  0.040 / 0.040
G22     178.7          12.3               10.4 +/-    1.67      27.4 +/-    1.67  0.030 / 0.070
G23     70.1           82.6                5.6 +/-    0.86       5.6 +/-    0.86  0.070 / 0.090
G26     43.0           17.7                6.8 +/-    3.79      15.8 +/-    3.79  0.080 / 0.090
G27     107.0          30.2               10.4 +/-    1.39      18.2 +/-    1.39  0.060 / 0.100
G30     269.4          11.6                1.8 +/-   30.36       4.8 +/-   30.36  0.050 / 0.140