PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-18:58:00
G02     289.4          80.6                8.7 +/-    0.80       8.8 +/-    0.80  0.040 / 0.120
G05     167.5          26.4               11.9 +/-    2.44      22.6 +/-    2.44  0.050 / 0.130
G06     40.7           45.2                7.9 +/-    0.67      10.6 +/-    0.67  0.030 / 0.040
G12     319.1          67.8                5.9 +/-    1.00       6.3 +/-    1.00  0.020 / 0.040
G17     80.4           15.3                9.2 +/-    1.93      22.8 +/-    1.93  0.110 / 0.180
G19     66.3           34.2                9.4 +/-    0.68      15.2 +/-    0.68  0.120 / 0.160
G24     232.8          27.4               13.6 +/-    3.76      25.2 +/-    3.76  0.050 / 0.040
G25     317.7          22.7                7.6 +/-    0.95      15.6 +/-    0.95  0.040 / 0.040