PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/22-11:12:50
G01     58.9           30.2                2.5 +/-    2.24       4.4 +/-    2.24  0.090 / 0.150
G07     142.6          20.5                3.0 +/-    3.07       6.5 +/-    3.07  0.140 / 0.180
G11     47.2           21.8                1.7 +/-    2.51       3.5 +/-    2.51  0.080 / 0.070
G13     260.8          35.0                6.1 +/-    2.04       9.7 +/-    2.04  0.100 / 0.080
G15     297.5          14.3                1.5 +/-    1.33       3.8 +/-    1.33  0.030 / 0.040
G17     269.3          78.5                4.9 +/-    0.70       5.0 +/-    0.70  0.040 / 0.040
G18     40.7           11.1                2.1 +/-    1.03       5.8 +/-    1.03  0.060 / 0.130
G19     232.7          47.0                5.3 +/-    2.41       6.9 +/-    2.41  0.070 / 0.090
G28     36.0           56.9                2.2 +/-    1.65       2.5 +/-    1.65  0.140 / 0.270
G30     144.9          52.9                5.0 +/-    0.44       6.1 +/-    0.44  0.100 / 0.350