PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-00:27:50
G10     243.4          20.3               14.9 +/-    3.55      32.6 +/-    3.55  0.050 / 0.060
G13     62.7           34.0               10.2 +/-    1.19      16.6 +/-    1.19  0.040 / 0.060
G15     109.2          57.6               11.8 +/-    0.44      13.7 +/-    0.44  0.080 / 0.120
G16     303.2          15.6                9.4 +/-    1.30      23.1 +/-    1.30  0.070 / 0.100
G20     252.9          31.3               12.9 +/-    3.71      22.0 +/-    3.71  0.100 / 0.330
G21     322.6          53.3               11.3 +/-    0.67      13.7 +/-    0.67  0.100 / 0.380
G26     275.0          18.8               11.0 +/-    1.39      24.9 +/-    1.39  0.030 / 0.040
G29     162.3          61.3               11.8 +/-    0.67      13.3 +/-    0.67  0.030 / 0.030