PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-07:42:40
G01     58.9           29.4                4.6 +/-    2.29       8.2 +/-    2.29  0.040 / 0.050
G06     179.0          14.8                3.5 +/-    2.81       8.7 +/-    2.81  0.040 / 0.050
G07     141.6          22.2                7.7 +/-    1.22      16.1 +/-    1.22  0.120 / 0.280
G11     49.2           27.0                3.2 +/-    1.76       5.9 +/-    1.76  0.120 / 0.360
G13     261.6          36.5                7.5 +/-    2.20      11.6 +/-    2.20  0.070 / 0.140
G15     292.9          16.8                2.8 +/-    2.07       6.7 +/-    2.07  0.070 / 0.120
G17     253.7          75.9                8.0 +/-    0.79       8.2 +/-    0.79  0.030 / 0.030
G19     231.3          52.6                8.0 +/-    2.44       9.8 +/-    2.44  0.030 / 0.030
G28     20.2           60.2                3.3 +/-    1.71       3.8 +/-    1.71  0.040 / 0.070
G30     144.2          56.1                8.3 +/-    0.55       9.8 +/-    0.55  0.040 / 0.050