PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/02-14:28:00
G10     255.6          32.5                8.9 +/-    1.70      14.8 +/-    1.70  0.130 / 0.550
G13     48.4           25.2                5.7 +/-    1.31      11.1 +/-    1.31  0.120 / 0.670
G15     71.4           53.4                7.7 +/-    0.33       9.3 +/-    0.33  0.040 / 0.040
G16     289.5          15.5                2.9 +/-    2.79       7.2 +/-    2.79  0.040 / 0.050
G20     281.6          56.8                9.1 +/-    0.95      10.6 +/-    0.95  0.050 / 0.060
G21     343.2          64.2                5.3 +/-    0.72       5.9 +/-    0.72  0.040 / 0.050
G26     263.6          13.2                5.1 +/-    1.74      13.2 +/-    1.74  0.090 / 0.100
G29     165.3          45.2               10.4 +/-    0.98      14.0 +/-    0.98  0.100 / 0.100