PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-12:43:00
G01     307.4          33.6                3.4 +/-    1.26       5.5 +/-    1.26  0.070 / 0.090
G10     105.7          39.2                3.9 +/-    0.45       5.7 +/-    0.45  0.080 / 0.090
G11     280.9          28.2                4.1 +/-    1.31       7.5 +/-    1.31  0.060 / 0.060
G14     358.4          66.9                3.1 +/-    0.84       3.3 +/-    0.84  0.060 / 0.060
G18     273.9          51.2                3.6 +/-    0.92       4.5 +/-    0.92  0.040 / 0.030
G20     120.4          14.1                3.6 +/-    1.30       9.3 +/-    1.30  0.050 / 0.040
G22     310.7          29.1                2.4 +/-    1.18       4.2 +/-    1.18  0.040 / 0.050
G25     81.0           15.8                4.5 +/-    3.89      11.1 +/-    3.89  0.030 / 0.040
G31     170.1          62.9                5.5 +/-    0.65       6.1 +/-    0.65  0.110 / 0.080
G32     30.0           56.4                3.4 +/-    0.91       4.0 +/-    0.91  0.100 / 0.080