PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/02-19:57:40
G01     38.2           11.2               12.0 +/-    3.28      32.6 +/-    3.28  0.120 / 0.180
G02     199.7          14.6               18.8 +/-    2.64      47.2 +/-    2.64  0.150 / 0.190
G06     171.9          47.8               15.7 +/-    1.58      20.4 +/-    1.58  0.030 / 0.040
G13     232.1          17.4               15.7 +/-    2.80      36.9 +/-    2.80  0.030 / 0.040
G17     8.8            66.5               12.6 +/-    0.37      13.6 +/-    0.37  0.100 / 0.180
G19     294.7          70.2               13.5 +/-    0.41      14.3 +/-    0.41  0.090 / 0.210
G24     313.5          25.2               14.2 +/-    2.20      27.5 +/-    2.20  0.050 / 0.090
G28     80.6           43.2               13.8 +/-    0.68      19.1 +/-    0.68  0.040 / 0.070
G30     156.1          20.5               17.4 +/-    3.20      38.0 +/-    3.20  0.030 / 0.050