PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-02:43:00
G01     80.4           33.2                4.9 +/-    1.05       8.0 +/-    1.05  0.060 / 0.040
G07     132.2          38.3                8.6 +/-    0.59      12.8 +/-    0.59  0.040 / 0.040
G11     61.9           37.1                5.0 +/-    1.09       7.6 +/-    1.09  0.060 / 0.080
G13     285.7          37.1                3.9 +/-    1.35       5.9 +/-    1.35  0.060 / 0.080
G15     308.6          13.7                1.8 +/-    2.39       4.6 +/-    2.39  0.130 / 0.170
G17     222.3          61.0                6.1 +/-    1.42       6.8 +/-    1.42  0.080 / 0.210
G19     218.9          35.3                6.8 +/-    1.46      10.8 +/-    1.46  0.040 / 0.050
G28     6.5            60.7                4.8 +/-    1.25       5.4 +/-    1.25  0.040 / 0.070
G30     125.5          65.3                7.7 +/-    0.46       8.4 +/-    0.46  0.040 / 0.060