PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-18:58:00
G01     52.5           27.1               11.3 +/-    1.17      21.0 +/-    1.17  0.100 / 0.300
G06     177.5          23.2               14.1 +/-    0.51      28.8 +/-    0.51  0.080 / 0.290
G07     145.4          15.4               13.6 +/-    2.92      33.4 +/-    2.92  0.080 / 0.150
G11     45.5           17.9               10.6 +/-    1.58      24.5 +/-    1.58  0.190 / 0.170
G13     253.6          31.9               15.0 +/-    2.52      25.2 +/-    2.52  0.020 / 0.030
G15     287.4          15.7               11.6 +/-    2.27      28.4 +/-    2.27  0.030 / 0.030
G17     287.9          77.8               14.1 +/-    0.72      14.4 +/-    0.72  0.050 / 0.070
G19     241.5          55.6               14.3 +/-    0.82      16.9 +/-    0.82  0.040 / 0.060
G28     48.3           53.9               13.0 +/-    0.40      15.7 +/-    0.40  0.040 / 0.060
G30     148.3          44.0               14.0 +/-    1.01      19.2 +/-    1.01  0.030 / 0.070