PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-06:58:10
G01     121.9          15.6                5.7 +/-    1.30      13.9 +/-    1.30  0.160 / 0.230
G07     74.4           67.1                6.8 +/-    0.54       7.3 +/-    0.54  0.150 / 0.280
G08     45.6           32.1                3.5 +/-    1.14       5.9 +/-    1.14  0.030 / 0.040
G09     174.1          25.2                6.5 +/-    3.06      12.6 +/-    3.06  0.040 / 0.040
G11     109.0          38.8                8.3 +/-    0.51      12.3 +/-    0.51  0.030 / 0.040
G13     318.9          17.2                5.1 +/-    1.64      12.0 +/-    1.64  0.030 / 0.030
G17     200.0          23.2                6.0 +/-    3.40      12.1 +/-    3.40  0.200 / 0.310
G18     95.5           19.4                6.9 +/-    1.40      15.5 +/-    1.40  0.140 / 0.360
G28     284.8          55.1                7.1 +/-    2.42       8.5 +/-    2.42  0.100 / 0.190
G30     338.2          64.6                6.5 +/-    0.59       7.1 +/-    0.59  0.130 / 0.240