PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-08:27:40
G01     43.3           19.2                3.8 +/-    0.76       8.4 +/-    0.76  0.050 / 0.090
G06     174.8          32.9                8.1 +/-    1.08      13.3 +/-    1.08  0.060 / 0.080
G11     43.9           11.6                3.5 +/-    1.34       9.6 +/-    1.34  0.160 / 0.300
G13     241.6          26.7                8.9 +/-    1.84      16.8 +/-    1.84  0.130 / 0.280
G15     275.1          14.2                4.8 +/-    1.27      12.1 +/-    1.27  0.170 / 0.450
G17     344.0          75.5                7.9 +/-    0.68       8.1 +/-    0.68  0.160 / 0.410
G19     262.7          67.7                6.5 +/-    0.55       7.0 +/-    0.55  0.090 / 0.200
G24     318.3          12.7                0.4 +/-    3.07       1.1 +/-    3.07  0.090 / 0.230
G28     53.0           55.1                6.4 +/-    0.39       7.6 +/-    0.39  0.040 / 0.060
G30     153.7          36.7                8.1 +/-    0.92      12.5 +/-    0.92  0.030 / 0.070