PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-12:43:00
G05     47.7           19.9                3.1 +/-    2.30       6.8 +/-    2.30  0.190 / 0.180
G10     234.7          13.0                3.9 +/-    2.80      10.2 +/-    2.80  0.230 / 0.150
G13     76.9           35.2                6.0 +/-    1.46       9.5 +/-    1.46  0.160 / 0.310
G15     121.0          51.7                8.5 +/-    0.94      10.4 +/-    0.94  0.190 / 0.380
G16     315.0          12.2                4.9 +/-    4.25      12.9 +/-    4.25  0.040 / 0.070
G20     247.9          38.9                6.9 +/-    1.10      10.2 +/-    1.10  0.050 / 0.090
G21     312.9          46.4                5.7 +/-    1.35       7.5 +/-    1.35  0.030 / 0.030
G25     200.0          12.9                3.1 +/-    6.17       8.2 +/-    6.17  0.030 / 0.020
G26     290.2          19.9                2.5 +/-    1.93       5.6 +/-    1.93  0.120 / 0.420
G29     150.8          76.0                7.7 +/-    0.80       7.9 +/-    0.80  0.120 / 0.400