PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-05:28:10
G10     266.7          39.0                6.2 +/-    1.00       9.2 +/-    1.00  0.050 / 0.070
G13     41.9           17.9                2.6 +/-    0.62       6.1 +/-    0.62  0.060 / 0.080
G15     58.7           48.0                3.8 +/-    0.41       5.0 +/-    0.41  0.140 / 0.220
G16     283.0          12.1                5.9 +/-    1.52      15.7 +/-    1.52  0.120 / 0.160
G20     297.1          60.1                4.5 +/-    0.45       5.1 +/-    0.45  0.040 / 0.040
G21     6.1            71.9                4.5 +/-    0.70       4.7 +/-    0.70  0.040 / 0.040
G24     120.3          14.0                5.7 +/-    2.23      14.4 +/-    2.23  0.080 / 0.200
G27     319.6          17.2                2.9 +/-    1.57       6.7 +/-    1.57  0.080 / 0.240
G29     165.5          28.4                5.0 +/-    1.03       9.1 +/-    1.03  0.030 / 0.050