PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-16:58:00
G07     338.3          59.8                9.6 +/-    0.60      10.9 +/-    0.60  0.030 / 0.050
G08     96.4           53.5               10.6 +/-    0.44      12.8 +/-    0.44  0.040 / 0.040
G09     187.4          69.5               11.7 +/-    0.34      12.4 +/-    0.34  0.060 / 0.070
G11     144.1          15.4               14.1 +/-    4.16      34.8 +/-    4.16  0.090 / 0.090
G23     155.2          32.7               10.5 +/-    1.46      17.3 +/-    1.46  0.020 / 0.040
G27     51.2           29.2                9.8 +/-    1.29      17.4 +/-    1.29  0.030 / 0.050
G28     240.8          33.0               11.7 +/-    1.38      19.3 +/-    1.38  0.060 / 0.100
G30     305.9          38.7                9.4 +/-    1.71      14.0 +/-    1.71  0.050 / 0.100