PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/09-17:27:50
G01     56.4           28.8                7.9 +/-    1.17      14.1 +/-    1.17  0.040 / 0.050
G07     142.7          14.8                9.7 +/-    1.57      24.1 +/-    1.57  0.040 / 0.060
G11     46.5           21.2                9.1 +/-    3.56      19.4 +/-    3.56  0.240 / 0.260
G13     257.8          34.8               11.7 +/-    2.27      18.7 +/-    2.27  0.230 / 0.280
G15     290.3          16.5                8.7 +/-    2.26      20.9 +/-    2.26  0.180 / 0.380
G17     266.8          77.2               10.7 +/-    0.49      10.9 +/-    0.49  0.160 / 0.480
G18     39.5           10.0                7.4 +/-    1.58      20.8 +/-    1.58  0.070 / 0.110
G19     235.3          54.4               11.3 +/-    1.99      13.5 +/-    1.99  0.080 / 0.140
G28     31.7           58.4                9.5 +/-    1.05      10.9 +/-    1.05  0.020 / 0.020
G30     145.0          45.9               11.1 +/-    0.60      14.8 +/-    0.60  0.030 / 0.040