PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-16:57:40
G01     60.5           30.7                8.1 +/-    1.09      14.0 +/-    1.09  0.100 / 0.260
G07     142.2          22.8               11.6 +/-    1.92      23.9 +/-    1.92  0.110 / 0.200
G11     48.3           23.9                8.7 +/-    1.80      17.5 +/-    1.80  0.040 / 0.040
G13     262.8          35.4               12.7 +/-    1.80      20.0 +/-    1.80  0.040 / 0.040
G15     295.9          15.6                8.0 +/-    1.38      19.7 +/-    1.38  0.100 / 0.130
G17     256.0          75.3               10.7 +/-    0.27      11.1 +/-    0.27  0.060 / 0.140
G18     42.5           13.0                7.5 +/-    1.88      19.6 +/-    1.88  0.030 / 0.030
G19     231.9          47.8               11.8 +/-    2.08      15.3 +/-    2.08  0.030 / 0.030
G28     35.2           56.8               10.5 +/-    1.00      12.2 +/-    1.00  0.060 / 0.120
G30     143.6          53.0               11.8 +/-    0.77      14.4 +/-    0.77  0.070 / 0.090