PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-03:58:00
G08     261.3          15.6               11.4 +/-    1.98      27.9 +/-    1.98  0.110 / 0.390
G10     71.7           55.7                6.4 +/-    1.02       7.6 +/-    1.02  0.100 / 0.380
G11     307.0          20.8                7.9 +/-    3.28      17.1 +/-    3.28  0.040 / 0.050
G14     277.9          67.6                7.4 +/-    0.64       7.9 +/-    0.64  0.050 / 0.070
G18     308.8          36.5                7.3 +/-    1.86      11.3 +/-    1.86  0.130 / 0.420
G20     88.1           53.0                9.6 +/-    0.84      11.7 +/-    0.84  0.120 / 0.330
G21     155.8          10.7                5.7 +/-    1.50      15.7 +/-    1.50  0.030 / 0.040
G27     227.6          12.0               10.2 +/-    2.25      27.1 +/-    2.25  0.030 / 0.040
G31     175.3          38.4                9.5 +/-    1.28      14.2 +/-    1.28  0.230 / 0.500
G32     1.7            69.9                7.2 +/-    0.74       7.6 +/-    0.74  0.200 / 0.670