PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/09-03:28:00
G10     254.0          29.3               11.9 +/-    1.99      21.1 +/-    1.99  0.040 / 0.060
G13     50.3           27.7                6.4 +/-    0.91      11.9 +/-    0.91  0.050 / 0.050
G15     79.8           56.9                8.6 +/-    0.56      10.1 +/-    0.56  0.160 / 0.520
G16     290.8          15.3                8.0 +/-    2.21      19.8 +/-    2.21  0.170 / 0.480
G20     283.1          59.6               10.6 +/-    0.92      12.1 +/-    0.92  0.060 / 0.160
G21     337.7          62.4                9.5 +/-    0.54      10.5 +/-    0.54  0.080 / 0.200
G26     262.8          14.0               11.1 +/-    1.26      28.2 +/-    1.26  0.020 / 0.040
G29     166.2          46.4               11.0 +/-    0.67      14.5 +/-    0.67  0.030 / 0.050