PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-15:57:40
G02     84.1           12.4               10.3 +/-    2.59      27.3 +/-    2.59  0.040 / 0.080
G05     44.7           34.2                7.0 +/-    0.73      11.3 +/-    0.73  0.040 / 0.060
G13     100.9          33.5               12.0 +/-    0.67      19.5 +/-    0.67  0.040 / 0.040
G15     143.7          38.1               14.3 +/-    0.69      21.5 +/-    0.69  0.040 / 0.040
G18     231.3          28.4               11.2 +/-    1.55      20.3 +/-    1.55  0.060 / 0.100
G20     326.9          84.5                9.6 +/-    0.67       9.6 +/-    0.67  0.070 / 0.100
G21     298.7          38.8                8.8 +/-    1.09      13.1 +/-    1.09  0.120 / 0.450
G25     208.4          25.5               10.7 +/-    1.26      20.7 +/-    1.26  0.130 / 0.340
G26     308.9          16.2                5.4 +/-    3.13      13.0 +/-    3.13  0.040 / 0.120
G29     94.4           84.6                9.6 +/-    0.60       9.6 +/-    0.60  0.050 / 0.120