PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-19:12:50
G01     65.3           31.7               10.9 +/-    0.75      18.5 +/-    0.75  0.070 / 0.110
G07     139.1          21.1               13.5 +/-    0.59      28.9 +/-    0.59  0.060 / 0.100
G11     50.2           27.2                9.0 +/-    1.66      16.8 +/-    1.66  0.050 / 0.070
G13     268.0          37.6               13.7 +/-    1.21      20.8 +/-    1.21  0.060 / 0.070
G15     297.9          16.3               11.3 +/-    2.30      27.3 +/-    2.30  0.050 / 0.050
G17     241.1          72.8               12.6 +/-    1.24      13.1 +/-    1.24  0.040 / 0.060
G18     44.4           14.8                8.1 +/-    4.55      20.3 +/-    4.55  0.090 / 0.120
G19     226.9          46.5               15.1 +/-    0.61      19.9 +/-    0.61  0.080 / 0.140
G28     18.0           60.0               12.5 +/-    0.93      14.2 +/-    0.93  0.170 / 0.420
G30     139.5          55.1               11.1 +/-    0.92      13.2 +/-    0.92  0.210 / 0.340