PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-00:43:10
G01     50.1           25.5                8.8 +/-    2.12      17.0 +/-    2.12  0.040 / 0.050
G06     178.6          24.3               10.9 +/-    2.36      21.7 +/-    2.36  0.040 / 0.050
G07     146.4          12.8                8.3 +/-    2.64      21.7 +/-    2.64  0.230 / 0.090
G11     45.4           17.4                7.8 +/-    2.25      18.3 +/-    2.25  0.100 / 0.120
G13     251.2          30.3                9.4 +/-    1.36      16.4 +/-    1.36  0.090 / 0.140
G15     283.0          15.9                8.7 +/-    1.27      21.2 +/-    1.27  0.110 / 0.140
G17     300.4          77.8                9.5 +/-    0.53       9.7 +/-    0.53  0.030 / 0.020
G19     247.0          60.0                8.5 +/-    0.48       9.7 +/-    0.48  0.020 / 0.020
G28     53.4           52.5                8.3 +/-    1.40      10.1 +/-    1.40  0.130 / 0.140
G30     148.9          38.1               11.3 +/-    0.95      17.0 +/-    0.95  0.120 / 0.140