PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/12-00:58:00
G07     334.5          58.4                4.0 +/-    0.58       4.6 +/-    0.58  0.140 / 0.150
G08     98.4           52.2                6.0 +/-    0.63       7.4 +/-    0.63  0.100 / 0.170
G09     192.8          73.4                5.7 +/-    0.44       5.9 +/-    0.44  0.030 / 0.030
G11     146.3          13.1                6.6 +/-    1.66      17.1 +/-    1.66  0.030 / 0.040
G23     155.8          40.7                6.7 +/-    0.67       9.6 +/-    0.67  0.030 / 0.040
G27     53.4           30.4                3.5 +/-    1.73       6.1 +/-    1.73  0.030 / 0.040
G28     238.4          31.0                5.9 +/-    1.74      10.1 +/-    1.74  0.030 / 0.030
G30     304.5          38.1                4.0 +/-    1.36       6.0 +/-    1.36  0.030 / 0.030