PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-13:43:00
G10     258.3          33.2                4.0 +/-    1.80       6.6 +/-    1.80  0.050 / 0.060
G13     46.6           24.1                5.0 +/-    1.80      10.0 +/-    1.80  0.060 / 0.080
G15     71.5           55.0                5.9 +/-    0.70       7.0 +/-    0.70  0.040 / 0.040
G16     289.5          14.0                3.1 +/-    1.19       7.8 +/-    1.19  0.060 / 0.040
G20     282.7          56.1                4.4 +/-    2.34       5.1 +/-    2.34  0.120 / 0.070
G21     355.1          68.4                3.1 +/-    1.04       3.3 +/-    1.04  0.080 / 0.080
G24     123.7          9.7               -12.6 +/-   23.98     -35.3 +/-   23.98  0.150 / 0.280
G26     263.5          11.8                4.0 +/-    1.95      10.7 +/-    1.95  0.160 / 0.400
G29     165.1          38.5                7.4 +/-    0.69      11.0 +/-    0.69  0.140 / 0.310