PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-03:27:40
G07     329.0          56.4                5.1 +/-    0.41       6.0 +/-    0.41  0.080 / 0.210
G08     103.7          50.7                6.8 +/-    0.39       8.5 +/-    0.39  0.100 / 0.210
G09     199.3          77.4                7.4 +/-    0.29       7.5 +/-    0.29  0.140 / 0.360
G11     148.0          10.7                1.0 +/-   17.61       2.6 +/-   17.61  0.310 / 0.240
G16     45.3           14.0                2.6 +/-    1.59       6.6 +/-    1.59  0.030 / 0.040
G23     154.6          46.3                7.7 +/-    0.72      10.2 +/-    0.72  0.040 / 0.040
G27     57.5           32.5                4.0 +/-    0.97       6.7 +/-    0.97  0.040 / 0.020
G28     235.0          27.6                4.8 +/-    1.65       8.8 +/-    1.65  0.030 / 0.020
G30     299.9          33.8                2.7 +/-    1.50       4.5 +/-    1.50  0.040 / 0.040