PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-17:12:50
G01     57.2           29.5                8.0 +/-    0.80      14.2 +/-    0.80  0.060 / 0.180
G07     143.5          19.9               11.6 +/-    1.36      25.6 +/-    1.36  0.070 / 0.200
G11     47.0           21.4                7.4 +/-    1.83      15.8 +/-    1.83  0.050 / 0.060
G13     259.1          34.2               10.2 +/-    1.23      16.5 +/-    1.23  0.040 / 0.050
G15     292.9          15.7                8.4 +/-    2.48      20.5 +/-    2.48  0.060 / 0.130
G17     268.1          77.0               11.3 +/-    0.88      11.5 +/-    0.88  0.060 / 0.100
G18     40.6           11.0                7.0 +/-    3.92      19.2 +/-    3.92  0.080 / 0.250
G19     235.1          50.7               12.8 +/-    1.18      16.1 +/-    1.18  0.080 / 0.260
G28     40.3           55.8                9.7 +/-    0.98      11.5 +/-    0.98  0.030 / 0.040
G30     145.7          49.8               12.4 +/-    0.62      15.6 +/-    0.62  0.040 / 0.030