PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-19:43:00
G02     290.3          80.9                8.2 +/-    1.06       8.2 +/-    1.06  0.120 / 0.140
G05     167.4          25.5               13.1 +/-    2.10      25.3 +/-    2.10  0.120 / 0.160
G06     39.6           48.4                7.9 +/-    0.80      10.1 +/-    0.80  0.140 / 0.140
G12     319.3          60.4                7.8 +/-    0.94       8.8 +/-    0.94  0.100 / 0.200
G17     77.9           17.9                8.4 +/-    0.98      19.4 +/-    0.98  0.050 / 0.050
G19     67.4           31.1                9.0 +/-    0.38      15.5 +/-    0.38  0.050 / 0.050
G24     235.5          28.3               19.6 +/-    1.92      35.5 +/-    1.92  0.170 / 0.340
G25     317.4          20.5                6.5 +/-    2.46      14.2 +/-    2.46  0.090 / 0.290