PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/10-16:28:00
G01     115.7          20.4               13.0 +/-    1.27      28.4 +/-    1.27  0.040 / 0.040
G07     89.4           64.7               14.0 +/-    0.44      15.3 +/-    0.44  0.030 / 0.030
G08     43.9           29.2               10.0 +/-    0.43      17.8 +/-    0.43  0.030 / 0.050
G09     176.1          21.7               13.6 +/-    1.15      28.7 +/-    1.15  0.030 / 0.050
G11     102.1          41.3               14.3 +/-    0.71      20.4 +/-    0.71  0.050 / 0.090
G13     315.7          22.4                9.2 +/-    1.31      19.0 +/-    1.31  0.060 / 0.090
G17     203.3          26.8               13.6 +/-    0.95      25.4 +/-    0.95  0.060 / 0.120
G18     90.4           22.2               10.9 +/-    1.18      22.7 +/-    1.18  0.050 / 0.130
G28     300.1          58.8               11.5 +/-    0.58      13.3 +/-    0.58  0.040 / 0.070
G30     354.7          71.9               12.4 +/-    0.74      13.0 +/-    0.74  0.040 / 0.060