PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/04-06:57:50
G01     67.1           31.5                4.4 +/-    0.78       7.5 +/-    0.78  0.030 / 0.030
G07     137.8          29.4                6.3 +/-    1.55      11.2 +/-    1.55  0.030 / 0.020
G11     53.8           32.9                3.7 +/-    1.13       6.2 +/-    1.13  0.220 / 0.330
G13     271.2          38.5                5.8 +/-    1.82       8.6 +/-    1.82  0.140 / 0.280
G15     299.7          16.2                2.1 +/-    2.98       5.1 +/-    2.98  0.080 / 0.090
G17     233.7          70.1                6.5 +/-    0.36       6.9 +/-    0.36  0.090 / 0.120
G19     224.1          45.6                6.5 +/-    2.30       8.7 +/-    2.30  0.040 / 0.030
G28     5.4            61.2                4.2 +/-    0.84       4.8 +/-    0.84  0.030 / 0.030
G30     137.6          64.1                6.5 +/-    0.58       7.2 +/-    0.58  0.050 / 0.050