PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-09:12:40
G01     46.6           22.6                2.2 +/-    0.47       4.6 +/-    0.47  0.040 / 0.060
G06     179.3          27.0                4.8 +/-    0.64       8.9 +/-    0.64  0.040 / 0.060
G11     43.7           10.7                1.0 +/-    2.30       2.8 +/-    2.30  0.020 / 0.040
G13     247.6          27.8                3.6 +/-    2.95       6.6 +/-    2.95  0.020 / 0.050
G15     279.3          15.1                2.3 +/-    2.11       5.6 +/-    2.11  0.130 / 0.280
G17     343.3          76.1                5.7 +/-    0.70       5.9 +/-    0.70  0.110 / 0.330
G19     257.1          65.1                4.5 +/-    1.05       4.9 +/-    1.05  0.100 / 0.210
G24     319.1          10.5              -15.8 +/-   20.07     -43.5 +/-   20.07  0.050 / 0.150
G28     60.1           50.5                4.6 +/-    0.88       5.8 +/-    0.88  0.050 / 0.130
G30     151.3          36.4                8.6 +/-    0.96      13.3 +/-    0.96  0.060 / 0.130