PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-23:42:50
G01     51.5           26.4                9.5 +/-    1.50      18.0 +/-    1.50  0.100 / 0.120
G06     178.5          23.1               11.9 +/-    0.85      24.3 +/-    0.85  0.110 / 0.130
G07     145.9          14.4               12.2 +/-    3.53      30.8 +/-    3.53  0.030 / 0.050
G11     45.8           18.4                7.1 +/-    0.68      16.1 +/-    0.68  0.030 / 0.050
G13     252.8          31.2               10.3 +/-    1.88      17.6 +/-    1.88  0.030 / 0.060
G15     284.8          16.1                9.9 +/-    1.56      23.9 +/-    1.56  0.030 / 0.040
G17     288.4          77.2                9.9 +/-    0.79      10.1 +/-    0.79  0.080 / 0.200
G19     244.2          58.3               12.4 +/-    0.83      14.2 +/-    0.83  0.070 / 0.260
G28     50.8           53.2                8.2 +/-    0.40      10.0 +/-    0.40  0.030 / 0.030
G30     148.3          40.4               12.4 +/-    0.91      17.8 +/-    0.91  0.040 / 0.030