PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-23:42:50
G01     51.5           26.4                8.2 +/-    2.42      15.5 +/-    2.42  0.090 / 0.160
G06     178.5          23.1               11.7 +/-    1.95      23.9 +/-    1.95  0.080 / 0.180
G07     145.9          14.4               11.4 +/-    2.26      28.8 +/-    2.26  0.040 / 0.040
G11     45.8           18.4                7.9 +/-    2.71      18.1 +/-    2.71  0.040 / 0.040
G13     252.8          31.2                9.1 +/-    3.59      15.6 +/-    3.59  0.040 / 0.050
G15     284.8          16.1                9.5 +/-    1.30      23.0 +/-    1.30  0.030 / 0.040
G17     288.4          77.2                8.9 +/-    0.40       9.1 +/-    0.40  0.180 / 0.140
G19     244.2          58.3                9.7 +/-    1.18      11.1 +/-    1.18  0.160 / 0.160
G28     50.8           53.2                8.4 +/-    1.14      10.2 +/-    1.14  0.160 / 0.250
G30     148.3          40.4               11.4 +/-    1.33      16.5 +/-    1.33  0.220 / 0.340