PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-15:58:10
G02     56.6           36.0                4.8 +/-    1.24       7.5 +/-    1.24  0.040 / 0.070
G05     65.9           66.8                6.1 +/-    0.72       6.5 +/-    0.72  0.040 / 0.070
G12     183.6          33.2                9.1 +/-    1.64      14.9 +/-    1.64  0.120 / 0.380
G13     129.1          13.9                8.9 +/-    3.32      22.8 +/-    3.32  0.130 / 0.390
G21     270.3          16.8                8.7 +/-    1.80      20.8 +/-    1.80  0.040 / 0.090
G25     233.7          52.6                6.9 +/-    1.07       8.4 +/-    1.07  0.080 / 0.100
G29     327.2          52.6                5.6 +/-    1.09       6.8 +/-    1.09  0.130 / 0.430