PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-12:43:10
G08     315.4          15.0                1.7 +/-    1.16       4.3 +/-    1.16  0.080 / 0.070
G10     322.3          58.2                3.4 +/-    1.32       3.9 +/-    1.32  0.080 / 0.080
G14     216.1          24.8                5.3 +/-    3.98      10.4 +/-    3.98  0.120 / 0.250
G15     46.1           13.2                1.3 +/-    1.80       3.2 +/-    1.80  0.130 / 0.240
G20     80.8           13.2                2.8 +/-    1.00       7.4 +/-    1.00  0.080 / 0.230
G21     129.2          59.4                5.5 +/-    0.53       6.3 +/-    0.53  0.080 / 0.220
G24     80.3           30.3                4.4 +/-    1.04       7.6 +/-    1.04  0.040 / 0.040
G27     279.9          38.0                4.2 +/-    0.98       6.3 +/-    0.98  0.030 / 0.050
G32     219.6          48.4                5.6 +/-    1.01       7.3 +/-    1.01  0.040 / 0.040