PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-01:58:00
G01     319.3          18.3                5.4 +/-    1.52      12.5 +/-    1.52  0.040 / 0.070
G08     263.1          14.1                8.3 +/-    1.61      21.1 +/-    1.61  0.040 / 0.070
G10     78.9           52.3                8.7 +/-    0.65      10.7 +/-    0.65  0.180 / 0.360
G11     304.9          21.6                4.8 +/-    4.02      10.2 +/-    4.02  0.210 / 0.340
G14     288.5          69.7                7.1 +/-    0.61       7.6 +/-    0.61  0.040 / 0.040
G18     305.7          40.2                6.7 +/-    1.21       9.7 +/-    1.21  0.040 / 0.040
G20     104.6          29.8                8.0 +/-    1.55      14.1 +/-    1.55  0.120 / 0.170
G27     225.2          10.0               11.0 +/-    3.77      30.6 +/-    3.77  0.130 / 0.210
G31     174.7          41.7                9.5 +/-    0.85      13.5 +/-    0.85  0.080 / 0.210
G32     3.7            68.8                8.3 +/-    0.51       8.8 +/-    0.51  0.090 / 0.300