PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-12:58:00
G01     319.9          16.1                3.9 +/-    0.88       9.4 +/-    0.88  0.030 / 0.020
G08     258.5          14.7                4.5 +/-    1.80      11.4 +/-    1.80  0.020 / 0.030
G10     76.1           53.7                4.3 +/-    0.84       5.2 +/-    0.84  0.170 / 0.180
G11     304.5          22.5                3.7 +/-    1.32       7.6 +/-    1.32  0.130 / 0.300
G14     290.4          70.8                3.7 +/-    0.65       3.9 +/-    0.65  0.050 / 0.050
G18     305.2          41.2                4.1 +/-    1.56       5.8 +/-    1.56  0.050 / 0.040
G20     103.2          30.7                4.6 +/-    0.76       8.0 +/-    0.76  0.040 / 0.030
G27     227.9          11.2                3.5 +/-    1.78       9.5 +/-    1.78  0.040 / 0.030
G31     178.7          36.7                5.5 +/-    1.10       8.5 +/-    1.10  0.070 / 0.070
G32     350.1          71.2                4.4 +/-    0.90       4.6 +/-    0.90  0.050 / 0.090