PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-15:28:10
G01     320.0          15.0                5.1 +/-    1.88      12.7 +/-    1.88  0.240 / 0.250
G08     262.7          14.7                6.4 +/-    1.56      15.9 +/-    1.56  0.320 / 0.390
G10     73.8           55.4                5.9 +/-    0.64       7.0 +/-    0.64  0.050 / 0.070
G11     307.9          19.6                5.3 +/-    1.14      11.7 +/-    1.14  0.050 / 0.060
G14     283.6          68.7                6.9 +/-    0.44       7.3 +/-    0.44  0.040 / 0.040
G27     225.5          10.6                7.8 +/-    3.22      21.5 +/-    3.22  0.030 / 0.040
G31     176.5          38.7                9.5 +/-    1.13      14.2 +/-    1.13  0.230 / 0.330
G32     1.7            69.5                5.9 +/-    0.34       6.2 +/-    0.34  0.190 / 0.320