PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-15:58:00
G02     230.9          69.2                9.2 +/-    0.56       9.8 +/-    0.56  0.040 / 0.110
G05     174.1          11.6                5.9 +/-   19.79      15.8 +/-   19.79  0.060 / 0.080
G06     42.2           62.2                8.4 +/-    0.50       9.4 +/-    0.50  0.080 / 0.100
G12     320.8          46.8                9.1 +/-    0.46      11.9 +/-    0.46  0.080 / 0.100
G17     64.8           27.9                8.4 +/-    1.11      15.4 +/-    1.11  0.040 / 0.030
G19     53.3           40.0                9.7 +/-    1.40      14.1 +/-    1.40  0.040 / 0.030
G24     251.3          37.0               10.7 +/-    1.59      16.4 +/-    1.59  0.040 / 0.050
G28     128.4          10.3               11.6 +/-    2.31      32.2 +/-    2.31  0.030 / 0.040