PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/26-22:58:00
G01     75.8           33.3               10.9 +/-    0.71      17.8 +/-    0.71  0.060 / 0.100
G07     134.9          35.2               13.2 +/-    1.23      20.9 +/-    1.23  0.060 / 0.100
G11     58.6           35.3                8.3 +/-    0.79      13.1 +/-    0.79  0.040 / 0.050
G13     280.4          37.6               12.1 +/-    1.20      18.3 +/-    1.20  0.030 / 0.050
G15     305.7          14.6                8.9 +/-    3.64      22.2 +/-    3.64  0.060 / 0.100
G17     226.5          61.6               13.1 +/-    1.44      14.7 +/-    1.44  0.070 / 0.090
G18     52.9           20.5                8.8 +/-    0.80      19.2 +/-    0.80  0.040 / 0.090
G19     221.3          37.9               14.0 +/-    2.56      21.1 +/-    2.56  0.060 / 0.080
G28     13.1           60.0                8.9 +/-    0.83      10.1 +/-    0.83  0.030 / 0.060
G30     130.7          62.9               13.0 +/-    0.55      14.4 +/-    0.55  0.030 / 0.050