PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-03:58:00
G02     200.0          26.0                5.8 +/-    0.64      11.1 +/-    0.64  0.050 / 0.100
G06     172.7          55.7                6.0 +/-    1.44       7.1 +/-    1.44  0.060 / 0.110
G13     225.5          10.9                4.8 +/-    4.27      13.1 +/-    4.27  0.030 / 0.040
G17     24.0           58.2                3.5 +/-    0.70       4.1 +/-    0.70  0.040 / 0.040
G19     335.6          70.1                2.6 +/-    0.88       2.7 +/-    0.88  0.160 / 0.470
G24     308.3          31.2                1.5 +/-    1.09       2.6 +/-    1.09  0.180 / 0.510
G28     92.3           37.2                5.3 +/-    0.85       8.1 +/-    0.85  0.080 / 0.110