PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-03:12:40
G08     311.4          18.0                8.5 +/-    2.34      19.6 +/-    2.34  0.080 / 0.070
G10     328.3          59.4                9.1 +/-    1.06      10.4 +/-    1.06  0.070 / 0.080
G14     217.3          26.5               13.5 +/-    1.84      25.6 +/-    1.84  0.090 / 0.180
G15     46.5           14.1                5.8 +/-    2.77      14.8 +/-    2.77  0.080 / 0.200
G20     4.5            65.0               17.3 +/-    0.36      18.8 +/-    0.36  0.050 / 0.090
G21     132.1          59.9               11.1 +/-    0.85      12.6 +/-    0.85  0.060 / 0.100
G24     75.1           29.6                8.6 +/-    0.70      15.2 +/-    0.70  0.030 / 0.060
G27     277.5          37.6               11.9 +/-    1.38      18.1 +/-    1.38  0.040 / 0.050
G32     221.5          52.3               12.7 +/-    1.64      15.6 +/-    1.64  0.020 / 0.040