PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-07:28:00
G01     296.7          38.5                3.1 +/-    2.50       4.6 +/-    2.50  0.040 / 0.040
G03     310.2          13.3                2.2 +/-    2.04       5.7 +/-    2.04  0.040 / 0.040
G10     115.9          32.3                5.3 +/-    1.88       8.9 +/-    1.88  0.070 / 0.060
G11     270.4          27.0                5.1 +/-    2.03       9.5 +/-    2.03  0.040 / 0.080
G14     10.4           63.2                4.7 +/-    0.48       5.2 +/-    0.48  0.060 / 0.060
G18     260.7          49.0                4.8 +/-    5.44       6.2 +/-    5.44  0.070 / 0.070
G22     313.3          36.2                4.1 +/-    1.15       6.4 +/-    1.15  0.090 / 0.150
G25     71.7           18.6                3.4 +/-    2.04       7.8 +/-    2.04  0.070 / 0.160
G31     137.8          76.4                6.1 +/-    0.76       6.3 +/-    0.76  0.050 / 0.080
G32     48.1           43.6                4.6 +/-    1.57       6.3 +/-    1.57  0.090 / 0.050