PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/07-03:42:50
G07     343.6          61.9                4.5 +/-    0.62       5.0 +/-    0.62  0.040 / 0.030
G08     88.5           52.4                5.2 +/-    0.57       6.4 +/-    0.57  0.040 / 0.040
G09     178.9          64.5                5.5 +/-    0.61       6.1 +/-    0.61  0.040 / 0.050
G11     144.3          17.4                6.2 +/-    3.64      14.5 +/-    3.64  0.030 / 0.040
G23     157.4          35.6                5.5 +/-    2.63       8.6 +/-    2.63  0.070 / 0.100
G27     50.0           28.2                2.5 +/-    0.96       4.5 +/-    0.96  0.060 / 0.100
G28     239.4          26.5                4.5 +/-    2.36       8.5 +/-    2.36  0.080 / 0.230
G30     304.8          36.6                4.4 +/-    1.65       6.8 +/-    1.65  0.090 / 0.300