PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-12:58:00
G01     289.5          41.1                2.2 +/-    3.73       3.1 +/-    3.73  0.060 / 0.090
G03     312.9          21.4                3.9 +/-    2.51       8.4 +/-    2.51  0.060 / 0.070
G10     120.2          27.0                6.5 +/-    1.25      12.1 +/-    1.25  0.050 / 0.050
G11     262.9          25.3                6.1 +/-    5.56      11.8 +/-    5.56  0.050 / 0.050
G14     26.6           57.9                5.6 +/-    1.59       6.5 +/-    1.59  0.080 / 0.110
G18     247.4          47.4                7.7 +/-    6.77      10.0 +/-    6.77  0.080 / 0.090
G22     314.9          43.3                6.3 +/-    0.68       8.7 +/-    0.68  0.050 / 0.040
G25     64.8           18.0                3.2 +/-    1.59       7.4 +/-    1.59  0.040 / 0.040
G31     134.5          78.9                7.7 +/-    0.57       7.8 +/-    0.57  0.040 / 0.050
G32     47.6           45.6                4.3 +/-    1.10       5.7 +/-    1.10  0.060 / 0.080