PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-00:57:50
G01     112.9          22.2                7.9 +/-    0.78      16.4 +/-    0.78  0.040 / 0.090
G07     96.0           62.7                7.3 +/-    0.46       8.1 +/-    0.46  0.050 / 0.090
G08     43.2           27.1                4.9 +/-    0.99       9.2 +/-    0.99  0.060 / 0.060
G09     176.7          20.1                8.7 +/-    1.50      19.1 +/-    1.50  0.060 / 0.050
G11     100.7          42.2                7.3 +/-    1.30      10.2 +/-    1.30  0.060 / 0.100
G13     314.4          23.8                4.6 +/-    3.30       9.2 +/-    3.30  0.060 / 0.100
G17     204.1          30.7                8.8 +/-    2.43      15.3 +/-    2.43  0.030 / 0.030
G28     307.3          59.9                7.1 +/-    0.69       8.1 +/-    0.69  0.030 / 0.040
G30     19.0           75.8                7.0 +/-    1.26       7.2 +/-    1.26  0.040 / 0.080