PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/26-20:57:50
G02     287.8          81.0               10.3 +/-    0.36      10.4 +/-    0.36  0.080 / 0.140
G05     167.4          25.7               15.6 +/-    1.90      30.0 +/-    1.90  0.110 / 0.160
G06     40.4           46.8                9.9 +/-    0.36      13.0 +/-    0.36  0.070 / 0.140
G12     319.7          65.0                9.2 +/-    0.98      10.0 +/-    0.98  0.060 / 0.150
G17     78.9           17.3               11.5 +/-    2.17      27.1 +/-    2.17  0.030 / 0.040
G19     65.5           34.4               11.3 +/-    1.02      18.2 +/-    1.02  0.040 / 0.050
G24     234.4          28.3               14.4 +/-    2.42      26.2 +/-    2.42  0.090 / 0.280
G25     317.7          21.1                8.8 +/-    1.94      18.9 +/-    1.94  0.100 / 0.270