PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/10-18:27:30
G02     230.1          70.2                8.1 +/-    0.44       8.5 +/-    0.44  0.300 / 0.520
G05     173.5          11.7                5.3 +/-   16.60      14.3 +/-   16.60  0.200 / 0.370
G06     42.6           63.6                6.7 +/-    0.47       7.4 +/-    0.47  0.040 / 0.040
G12     320.4          45.0                7.9 +/-    0.40      10.6 +/-    0.40  0.040 / 0.050
G17     64.9           27.4                6.1 +/-    1.17      11.4 +/-    1.17  0.080 / 0.110
G19     52.4           40.7                7.4 +/-    1.06      10.6 +/-    1.06  0.070 / 0.100
G24     251.4          37.3                8.3 +/-    0.59      12.7 +/-    0.59  0.050 / 0.100
G28     128.2          10.2                8.5 +/-    2.51      23.5 +/-    2.51  0.040 / 0.110