PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-09:12:30
G10     276.6          44.0                4.6 +/-    0.90       6.2 +/-    0.90  0.040 / 0.030
G13     38.6           11.3                1.8 +/-    7.67       4.7 +/-    7.67  0.030 / 0.030
G15     51.7           41.3                2.9 +/-    0.76       4.1 +/-    0.76  0.090 / 0.070
G20     315.1          63.4                4.2 +/-    0.60       4.6 +/-    0.60  0.110 / 0.060
G21     43.6           75.6                4.2 +/-    0.54       4.3 +/-    0.54  0.230 / 0.410
G24     111.6          19.0                5.2 +/-    1.27      11.8 +/-    1.27  0.200 / 0.730
G27     315.5          23.2                3.2 +/-    1.52       6.6 +/-    1.52  0.600 / 0.420
G29     165.7          18.1                5.2 +/-    1.64      12.0 +/-    1.64  0.190 / 0.340
G32     206.6          12.8                3.9 +/-    3.49      10.2 +/-    3.49  0.060 / 0.060