PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-00:58:10
G10     256.6          31.4               16.9 +/-    1.56      28.8 +/-    1.56  0.040 / 0.050
G13     48.0           25.7               10.4 +/-    1.10      19.9 +/-    1.10  0.040 / 0.050
G15     76.5           56.9               11.3 +/-    0.27      13.2 +/-    0.27  0.070 / 0.210
G16     287.6          15.0               10.9 +/-    2.54      27.0 +/-    2.54  0.070 / 0.200
G20     268.0          41.6               12.8 +/-    1.00      18.1 +/-    1.00  0.130 / 0.430
G21     341.4          64.3               11.1 +/-    1.17      12.2 +/-    1.17  0.120 / 0.390
G26     260.1          12.7               14.9 +/-    5.95      39.2 +/-    5.95  0.040 / 0.060
G29     166.8          43.4               14.3 +/-    0.69      19.7 +/-    0.69  0.040 / 0.060