PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-05:43:10
G01     61.5           31.0                5.8 +/-    0.94      10.0 +/-    0.94  0.040 / 0.040
G06     181.0          12.7                6.5 +/-    3.30      17.1 +/-    3.30  0.040 / 0.040
G07     141.3          21.5                9.2 +/-    1.39      19.6 +/-    1.39  0.030 / 0.030
G11     48.0           23.4                4.7 +/-    0.67       9.5 +/-    0.67  0.030 / 0.030
G13     263.6          36.1                7.4 +/-    1.01      11.5 +/-    1.01  0.060 / 0.110
G15     296.7          15.6                3.6 +/-    2.47       8.9 +/-    2.47  0.060 / 0.080
G17     260.4          78.2                8.1 +/-    0.62       8.3 +/-    0.62  0.030 / 0.060
G19     230.5          47.1                5.9 +/-    0.94       7.7 +/-    0.94  0.030 / 0.060
G28     29.9           58.1                6.3 +/-    0.61       7.3 +/-    0.61  0.060 / 0.130
G30     143.1          55.3                8.9 +/-    1.29      10.6 +/-    1.29  0.050 / 0.130