PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/02-18:12:50
G01     79.6           33.3               11.1 +/-    0.60      18.2 +/-    0.60  0.100 / 0.200
G07     132.7          38.0               12.5 +/-    0.88      18.8 +/-    0.88  0.100 / 0.200
G11     59.9           35.8                9.6 +/-    0.49      15.0 +/-    0.49  0.040 / 0.080
G13     283.9          37.7               11.8 +/-    0.98      17.8 +/-    0.98  0.060 / 0.080
G15     309.5          12.8               10.5 +/-    1.04      27.4 +/-    1.04  0.040 / 0.050
G17     222.8          59.8               12.9 +/-    0.96      14.6 +/-    0.96  0.030 / 0.060
G18     55.4           21.5                7.9 +/-    1.55      16.7 +/-    1.55  0.030 / 0.030
G19     219.4          33.4               14.0 +/-    1.66      22.8 +/-    1.66  0.030 / 0.040
G28     6.4            60.7               10.2 +/-    0.65      11.5 +/-    0.65  0.030 / 0.050
G30     125.8          68.4               12.2 +/-    0.31      13.0 +/-    0.31  0.040 / 0.060