PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-05:42:40
G01     76.7           32.2                4.1 +/-    0.88       6.9 +/-    0.88  0.040 / 0.040
G07     132.6          37.2                6.8 +/-    0.73      10.4 +/-    0.73  0.030 / 0.030
G11     61.0           38.6                4.3 +/-    1.00       6.3 +/-    1.00  0.110 / 0.290
G13     282.0          39.1                4.3 +/-    0.59       6.3 +/-    0.59  0.110 / 0.320
G15     306.5          14.7                2.1 +/-    1.57       5.2 +/-    1.57  0.060 / 0.090
G17     221.3          62.9                5.7 +/-    1.29       6.3 +/-    1.29  0.060 / 0.080
G19     218.2          38.0                4.7 +/-    1.06       7.0 +/-    1.06  0.050 / 0.080
G28     348.7          61.5                2.2 +/-    0.78       2.5 +/-    0.78  0.040 / 0.080
G30     125.4          72.5                6.8 +/-    0.46       7.1 +/-    0.46  0.040 / 0.050