PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-02:28:00
G01     226.5          19.1                7.0 +/-    2.12      15.8 +/-    2.12  0.030 / 0.040
G03     296.5          65.0                2.3 +/-    1.31       2.6 +/-    1.31  0.040 / 0.040
G14     81.9           28.5                3.8 +/-    0.78       6.8 +/-    0.78  0.130 / 0.260
G16     146.9          42.1                8.0 +/-    1.76      11.3 +/-    1.76  0.130 / 0.330
G22     231.8          72.7                6.1 +/-    0.53       6.4 +/-    0.53  0.070 / 0.160
G23     305.8          36.5                5.0 +/-    1.22       7.8 +/-    1.22  0.070 / 0.150
G26     102.5          53.3                7.2 +/-    0.57       8.7 +/-    0.57  0.060 / 0.120
G31     44.8           33.5                2.5 +/-    0.72       4.1 +/-    0.72  0.040 / 0.080