PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-22:42:30
G02     65.8           28.2                7.6 +/-    1.16      13.8 +/-    1.16  0.030 / 0.040
G05     49.5           53.2                8.8 +/-    0.46      10.7 +/-    0.46  0.030 / 0.040
G12     181.2          21.7               13.1 +/-    1.90      27.6 +/-    1.90  0.100 / 0.120
G13     121.1          20.9               13.8 +/-    1.17      29.8 +/-    1.17  0.070 / 0.130
G15     160.9          18.0               15.3 +/-    3.36      35.4 +/-    3.36  0.060 / 0.130
G21     277.9          21.7               10.8 +/-    1.16      22.7 +/-    1.16  0.070 / 0.130
G25     225.6          45.3               11.4 +/-    0.95      15.4 +/-    0.95  0.090 / 0.290
G29     332.8          61.7               10.6 +/-    0.99      11.9 +/-    0.99  0.100 / 0.230