PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-01:12:40
G01     128.7          10.3              -20.9 +/-    5.87     -57.9 +/-    5.87  0.050 / 0.070
G07     45.6           69.6                7.6 +/-    0.79       8.1 +/-    0.79  0.040 / 0.070
G08     53.0           42.4                6.8 +/-    0.48       9.5 +/-    0.48  0.050 / 0.040
G09     179.3          39.4                9.8 +/-    0.59      14.4 +/-    0.59  0.040 / 0.050
G11     122.8          33.3                9.7 +/-    1.06      15.9 +/-    1.06  0.110 / 0.300
G17     200.0          12.4               10.5 +/-    1.59      27.7 +/-    1.59  0.080 / 0.300
G28     273.8          52.3                8.4 +/-    0.84      10.3 +/-    0.84  0.030 / 0.030
G30     335.6          61.5                6.1 +/-    0.55       6.9 +/-    0.55  0.030 / 0.030