PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/09-05:12:40
G01     110.4          23.7                6.7 +/-    1.96      13.6 +/-    1.96  0.040 / 0.040
G07     101.4          60.2                5.3 +/-    0.77       6.1 +/-    0.77  0.040 / 0.040
G08     42.3           22.9                2.2 +/-    1.86       4.6 +/-    1.86  0.090 / 0.180
G09     175.8          17.2                4.0 +/-    1.70       9.5 +/-    1.70  0.150 / 0.170
G11     94.5           41.9                6.1 +/-    1.17       8.5 +/-    1.17  0.130 / 0.080
G13     313.0          25.2                2.4 +/-    1.38       4.8 +/-    1.38  0.060 / 0.070
G17     204.3          35.4                6.3 +/-    1.11       9.9 +/-    1.11  0.090 / 0.130
G19     208.1          11.0               -1.4 +/-    6.01      -3.8 +/-    6.01  0.080 / 0.120
G28     312.4          60.5                3.6 +/-    0.88       4.1 +/-    0.88  0.030 / 0.030
G30     16.1           76.3                5.0 +/-    0.75       5.1 +/-    0.75  0.030 / 0.030