PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-17:12:50
G01     44.9           21.1               13.7 +/-    3.19      29.4 +/-    3.19  0.260 / 0.160
G06     175.0          33.5               13.9 +/-    1.94      22.7 +/-    1.94  0.240 / 0.160
G07     148.2          6.2                14.3 +/-    4.62      42.7 +/-    4.62  0.060 / 0.100
G11     43.5           9.0                10.9 +/-    4.19      31.0 +/-    4.19  0.070 / 0.110
G13     243.4          26.3               12.9 +/-    2.67      24.5 +/-    2.67  0.100 / 0.270
G15     279.1          13.8               10.9 +/-    1.50      28.0 +/-    1.50  0.180 / 0.390
G17     341.6          75.4               13.3 +/-    0.41      13.7 +/-    0.41  0.070 / 0.090
G19     257.2          62.7               13.4 +/-    0.55      14.8 +/-    0.55  0.080 / 0.090
G28     62.6           50.0               13.4 +/-    1.11      16.9 +/-    1.11  0.040 / 0.040
G30     152.8          34.7               15.2 +/-    1.80      24.3 +/-    1.80  0.040 / 0.040