PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-19:12:30
G02     64.3           30.2                8.9 +/-    2.29      15.6 +/-    2.29  0.040 / 0.030
G05     50.3           54.9                9.3 +/-    0.66      11.1 +/-    0.66  0.030 / 0.030
G12     179.8          20.7               11.8 +/-    2.00      25.6 +/-    2.00  0.100 / 0.090
G13     121.3          20.4               11.8 +/-    1.73      25.7 +/-    1.73  0.090 / 0.090
G15     162.8          16.6               13.1 +/-    1.77      31.4 +/-    1.77  0.130 / 0.190
G21     277.2          21.0                9.7 +/-    2.28      20.9 +/-    2.28  0.130 / 0.180
G25     224.9          45.6               10.8 +/-    2.55      14.4 +/-    2.55  0.030 / 0.040
G29     332.2          60.8                8.5 +/-    0.98       9.6 +/-    0.98  0.020 / 0.030