PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-10:12:30
G08     302.3          22.0                4.2 +/-    1.97       8.7 +/-    1.97  0.040 / 0.040
G10     348.5          61.9                4.2 +/-    0.53       4.7 +/-    0.53  0.040 / 0.050
G14     221.9          38.3                7.1 +/-    1.89      10.7 +/-    1.89  0.080 / 0.090
G20     50.7           57.1                5.5 +/-    0.46       6.4 +/-    0.46  0.110 / 0.050
G21     140.3          47.1                6.8 +/-    0.54       8.9 +/-    0.54  0.080 / 0.130
G24     64.3           27.9                3.3 +/-    0.95       6.1 +/-    0.95  0.090 / 0.120
G27     268.2          35.7                7.3 +/-    2.13      11.4 +/-    2.13  0.030 / 0.020
G32     229.4          54.3                6.9 +/-    2.41       8.2 +/-    2.41  0.030 / 0.040