PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-11:28:00
G01     72.5           33.1                3.9 +/-    0.71       6.5 +/-    0.71  0.050 / 0.100
G07     136.6          31.7                6.0 +/-    0.94      10.2 +/-    0.94  0.050 / 0.120
G11     53.9           30.8                3.5 +/-    0.82       6.0 +/-    0.82  0.030 / 0.040
G13     275.9          37.9                6.5 +/-    1.03       9.8 +/-    1.03  0.030 / 0.040
G15     308.6          11.9                2.7 +/-    1.47       7.2 +/-    1.47  0.130 / 0.260
G17     231.3          69.4                5.0 +/-    1.01       5.3 +/-    1.01  0.090 / 0.240
G18     49.2           18.1                1.7 +/-    0.80       3.9 +/-    0.80  0.070 / 0.180
G19     222.9          36.0                7.5 +/-    1.15      11.7 +/-    1.15  0.080 / 0.190
G28     15.3           59.9                4.3 +/-    0.50       4.9 +/-    0.50  0.040 / 0.090
G30     134.0          64.9                5.0 +/-    0.70       5.5 +/-    0.70  0.040 / 0.080