PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/12-01:27:50
G01     58.4           29.8                5.5 +/-    1.48       9.7 +/-    1.48  0.210 / 0.340
G06     182.3          12.8              -11.2 +/-   33.80     -29.4 +/-   33.80  0.240 / 0.410
G07     142.4          17.4                7.1 +/-    0.86      16.7 +/-    0.86  0.120 / 0.090
G11     46.8           21.3                3.6 +/-    2.69       7.8 +/-    2.69  0.110 / 0.110
G13     260.0          35.2                7.2 +/-    1.62      11.3 +/-    1.62  0.070 / 0.120
G15     292.4          16.3                7.4 +/-    2.96      17.8 +/-    2.96  0.060 / 0.130
G17     273.0          79.4                7.1 +/-    0.72       7.2 +/-    0.72  0.030 / 0.040
G19     233.5          51.1                8.4 +/-    2.03      10.4 +/-    2.03  0.040 / 0.040
G28     32.9           57.8                6.6 +/-    0.84       7.6 +/-    0.84  0.070 / 0.080
G30     144.9          51.2                7.9 +/-    0.67       9.8 +/-    0.67  0.070 / 0.080